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[Syllabus Presentation]
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[Syllabus Presentation]
1. The shape and size of the earth.
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[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
(1) The latitude difference between two points on the same meridian is about 1° apart, as shown in AB.
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
(1) The latitude difference between two points on the same meridian is about 1° apart, as shown in AB.
(2) Two points on the same parallel line, the longitude difference of 1 ° is about 111×cos φ km (φ represents the latitude value of the parallel line), as shown in the figure AC.
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
(1) The latitude difference between two points on the same meridian is about 1° apart, as shown in AB.
(2) Two points on the same parallel line, the longitude difference of 1 ° is about 111×cos φ km (φ represents the latitude value of the parallel line), as shown in the figure AC.
(3) Set the "scope"
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
(1) The latitude difference between two points on the same meridian is about 1° apart, as shown in AB.
(2) Two points on the same parallel line, the longitude difference of 1 ° is about 111×cos φ km (φ represents the latitude value of the parallel line), as shown in the figure AC.
(3) Set the "scope"
Spans an area with the same number of latitudes and longitudes, and the higher the latitude, the smaller the actual range represented, as in (1) > (2), (3) < (4) in the following figure.
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
(1) The latitude difference between two points on the same meridian is about 1° apart, as shown in AB.
(2) Two points on the same parallel line, the longitude difference of 1 ° is about 111×cos φ km (φ represents the latitude value of the parallel line), as shown in the figure AC.
(3) Set the "scope"
Spans an area with the same number of latitudes and longitudes, and the higher the latitude, the smaller the actual range represented, as in (1) > (2), (3) < (4) in the following figure.
(4) Fixing the "symmetry point position"
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
(1) The latitude difference between two points on the same meridian is about 1° apart, as shown in AB.
(2) Two points on the same parallel line, the longitude difference of 1 ° is about 111×cos φ km (φ represents the latitude value of the parallel line), as shown in the figure AC.
(3) Set the "scope"
Spans an area with the same number of latitudes and longitudes, and the higher the latitude, the smaller the actual range represented, as in (1) > (2), (3) < (4) in the following figure.
(4) Fixing the "symmetry point position"
(1) Two points about equatorial symmetry: the longitude is the same; the number of latitudes is the same but the latitudes of north and south are opposite. Such as A(40°N, 20°W) and B().
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
(1) The latitude difference between two points on the same meridian is about 1° apart, as shown in AB.
(2) Two points on the same parallel line, the longitude difference of 1 ° is about 111×cos φ km (φ represents the latitude value of the parallel line), as shown in the figure AC.
(3) Set the "scope"
Spans an area with the same number of latitudes and longitudes, and the higher the latitude, the smaller the actual range represented, as in (1) > (2), (3) < (4) in the following figure.
(4) Fixing the "symmetry point position"
(1) Two points about equatorial symmetry: the longitude is the same; the number of latitudes is the same but the latitudes of north and south are opposite. Such as A(40°N, 20°W) and B().
(2) Two points about the symmetry of the earth's axis: the longitude is relative, and the sum of the longitude degrees is 180°; the latitude is the same. Such as A(40°N, 20°W) and C().
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
(1) The latitude difference between two points on the same meridian is about 1° apart, as shown in AB.
(2) Two points on the same parallel line, the longitude difference of 1 ° is about 111×cos φ km (φ represents the latitude value of the parallel line), as shown in the figure AC.
(3) Set the "scope"
Spans an area with the same number of latitudes and longitudes, and the higher the latitude, the smaller the actual range represented, as in (1) > (2), (3) < (4) in the following figure.
(4) Fixing the "symmetry point position"
(1) Two points about equatorial symmetry: the longitude is the same; the number of latitudes is the same but the latitudes of north and south are opposite. Such as A(40°N, 20°W) and B().
(2) Two points about the symmetry of the earth's axis: the longitude is relative, and the sum of the longitude degrees is 180°; the latitude is the same. Such as A(40°N, 20°W) and C().
(3) Pairs of metatarsal points — two points of symmetry concerning the center of the earth: the meridians are opposite, and the sum of the longitude degrees is 180°; the latitude number is the same but the north and south latitudes are opposite. Such as A(40°N, 20°W) and D().
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
(1) The latitude difference between two points on the same meridian is about 1° apart, as shown in AB.
(2) Two points on the same parallel line, the longitude difference of 1 ° is about 111×cos φ km (φ represents the latitude value of the parallel line), as shown in the figure AC.
(3) Set the "scope"
Spans an area with the same number of latitudes and longitudes, and the higher the latitude, the smaller the actual range represented, as in (1) > (2), (3) < (4) in the following figure.
(4) Fixing the "symmetry point position"
(1) Two points about equatorial symmetry: the longitude is the same; the number of latitudes is the same but the latitudes of north and south are opposite. Such as A(40°N, 20°W) and B().
(2) Two points about the symmetry of the earth's axis: the longitude is relative, and the sum of the longitude degrees is 180°; the latitude is the same. Such as A(40°N, 20°W) and C().
(3) Pairs of metatarsal points — two points of symmetry concerning the center of the earth: the meridians are opposite, and the sum of the longitude degrees is 180°; the latitude number is the same but the north and south latitudes are opposite. Such as A(40°N, 20°W) and D().
(5) Set the "shortest route"
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
(1) The latitude difference between two points on the same meridian is about 1° apart, as shown in AB.
(2) Two points on the same parallel line, the longitude difference of 1 ° is about 111×cos φ km (φ represents the latitude value of the parallel line), as shown in the figure AC.
(3) Set the "scope"
Spans an area with the same number of latitudes and longitudes, and the higher the latitude, the smaller the actual range represented, as in (1) > (2), (3) < (4) in the following figure.
(4) Fixing the "symmetry point position"
(1) Two points about equatorial symmetry: the longitude is the same; the number of latitudes is the same but the latitudes of north and south are opposite. Such as A(40°N, 20°W) and B().
(2) Two points about the symmetry of the earth's axis: the longitude is relative, and the sum of the longitude degrees is 180°; the latitude is the same. Such as A(40°N, 20°W) and C().
(3) Pairs of metatarsal points — two points of symmetry concerning the center of the earth: the meridians are opposite, and the sum of the longitude degrees is 180°; the latitude number is the same but the north and south latitudes are opposite. Such as A(40°N, 20°W) and D().
(5) Set the "shortest route"
The two points on the sphere, and the inferior arc on the large circle that passes through these two points is the shortest route.
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
(1) The latitude difference between two points on the same meridian is about 1° apart, as shown in AB.
(2) Two points on the same parallel line, the longitude difference of 1 ° is about 111×cos φ km (φ represents the latitude value of the parallel line), as shown in the figure AC.
(3) Set the "scope"
Spans an area with the same number of latitudes and longitudes, and the higher the latitude, the smaller the actual range represented, as in (1) > (2), (3) < (4) in the following figure.
(4) Fixing the "symmetry point position"
(1) Two points about equatorial symmetry: the longitude is the same; the number of latitudes is the same but the latitudes of north and south are opposite. Such as A(40°N, 20°W) and B().
(2) Two points about the symmetry of the earth's axis: the longitude is relative, and the sum of the longitude degrees is 180°; the latitude is the same. Such as A(40°N, 20°W) and C().
(3) Pairs of metatarsal points — two points of symmetry concerning the center of the earth: the meridians are opposite, and the sum of the longitude degrees is 180°; the latitude number is the same but the north and south latitudes are opposite. Such as A(40°N, 20°W) and D().
(5) Set the "shortest route"
The two points on the sphere, and the inferior arc on the large circle that passes through these two points is the shortest route.
(1) If the two places are on the same equator, they will go in an inferior arc along the equator.
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
(1) The latitude difference between two points on the same meridian is about 1° apart, as shown in AB.
(2) Two points on the same parallel line, the longitude difference of 1 ° is about 111×cos φ km (φ represents the latitude value of the parallel line), as shown in the figure AC.
(3) Set the "scope"
Spans an area with the same number of latitudes and longitudes, and the higher the latitude, the smaller the actual range represented, as in (1) > (2), (3) < (4) in the following figure.
(4) Fixing the "symmetry point position"
(1) Two points about equatorial symmetry: the longitude is the same; the number of latitudes is the same but the latitudes of north and south are opposite. Such as A(40°N, 20°W) and B().
(2) Two points about the symmetry of the earth's axis: the longitude is relative, and the sum of the longitude degrees is 180°; the latitude is the same. Such as A(40°N, 20°W) and C().
(3) Pairs of metatarsal points — two points of symmetry concerning the center of the earth: the meridians are opposite, and the sum of the longitude degrees is 180°; the latitude number is the same but the north and south latitudes are opposite. Such as A(40°N, 20°W) and D().
(5) Set the "shortest route"
The two points on the sphere, and the inferior arc on the large circle that passes through these two points is the shortest route.
(1) If the two places are on the same equator, they will go in an inferior arc along the equator.
(2) If the longitude difference between the two places is 180°, that is, it is located in the same warp coil, then the arc is taken along the warp coil, such as A to E, B to D, A to C.
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
(1) The latitude difference between two points on the same meridian is about 1° apart, as shown in AB.
(2) Two points on the same parallel line, the longitude difference of 1 ° is about 111×cos φ km (φ represents the latitude value of the parallel line), as shown in the figure AC.
(3) Set the "scope"
Spans an area with the same number of latitudes and longitudes, and the higher the latitude, the smaller the actual range represented, as in (1) > (2), (3) < (4) in the following figure.
(4) Fixing the "symmetry point position"
(1) Two points about equatorial symmetry: the longitude is the same; the number of latitudes is the same but the latitudes of north and south are opposite. Such as A(40°N, 20°W) and B().
(2) Two points about the symmetry of the earth's axis: the longitude is relative, and the sum of the longitude degrees is 180°; the latitude is the same. Such as A(40°N, 20°W) and C().
(3) Pairs of metatarsal points — two points of symmetry concerning the center of the earth: the meridians are opposite, and the sum of the longitude degrees is 180°; the latitude number is the same but the north and south latitudes are opposite. Such as A(40°N, 20°W) and D().
(5) Set the "shortest route"
The two points on the sphere, and the inferior arc on the large circle that passes through these two points is the shortest route.
(1) If the two places are on the same equator, they will go in an inferior arc along the equator.
(2) If the longitude difference between the two places is 180°, that is, it is located in the same warp coil, then the arc is taken along the warp coil, such as A to E, B to D, A to C.
(3) If the two places are on the same parallel, but not on the same warp coil, they will first be biased towards the poles of the hemisphere, and then deviate from the poles to go badly.
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
(1) The latitude difference between two points on the same meridian is about 1° apart, as shown in AB.
(2) Two points on the same parallel line, the longitude difference of 1 ° is about 111×cos φ km (φ represents the latitude value of the parallel line), as shown in the figure AC.
(3) Set the "scope"
Spans an area with the same number of latitudes and longitudes, and the higher the latitude, the smaller the actual range represented, as in (1) > (2), (3) < (4) in the following figure.
(4) Fixing the "symmetry point position"
(1) Two points about equatorial symmetry: the longitude is the same; the number of latitudes is the same but the latitudes of north and south are opposite. Such as A(40°N, 20°W) and B().
(2) Two points about the symmetry of the earth's axis: the longitude is relative, and the sum of the longitude degrees is 180°; the latitude is the same. Such as A(40°N, 20°W) and C().
(3) Pairs of metatarsal points — two points of symmetry concerning the center of the earth: the meridians are opposite, and the sum of the longitude degrees is 180°; the latitude number is the same but the north and south latitudes are opposite. Such as A(40°N, 20°W) and D().
(5) Set the "shortest route"
The two points on the sphere, and the inferior arc on the large circle that passes through these two points is the shortest route.
(1) If the two places are on the same equator, they will go in an inferior arc along the equator.
(2) If the longitude difference between the two places is 180°, that is, it is located in the same warp coil, then the arc is taken along the warp coil, such as A to E, B to D, A to C.
(3) If the two places are on the same parallel, but not on the same warp coil, they will first be biased towards the poles of the hemisphere, and then deviate from the poles to go badly.
The shortest distance from a to b at two points on the same parallel in the Northern Hemisphere: first to the northeast, then to the east, and then to the southeast. (As shown in the figure below)
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
(1) The latitude difference between two points on the same meridian is about 1° apart, as shown in AB.
(2) Two points on the same parallel line, the longitude difference of 1 ° is about 111×cos φ km (φ represents the latitude value of the parallel line), as shown in the figure AC.
(3) Set the "scope"
Spans an area with the same number of latitudes and longitudes, and the higher the latitude, the smaller the actual range represented, as in (1) > (2), (3) < (4) in the following figure.
(4) Fixing the "symmetry point position"
(1) Two points about equatorial symmetry: the longitude is the same; the number of latitudes is the same but the latitudes of north and south are opposite. Such as A(40°N, 20°W) and B().
(2) Two points about the symmetry of the earth's axis: the longitude is relative, and the sum of the longitude degrees is 180°; the latitude is the same. Such as A(40°N, 20°W) and C().
(3) Pairs of metatarsal points — two points of symmetry concerning the center of the earth: the meridians are opposite, and the sum of the longitude degrees is 180°; the latitude number is the same but the north and south latitudes are opposite. Such as A(40°N, 20°W) and D().
(5) Set the "shortest route"
The two points on the sphere, and the inferior arc on the large circle that passes through these two points is the shortest route.
(1) If the two places are on the same equator, they will go in an inferior arc along the equator.
(2) If the longitude difference between the two places is 180°, that is, it is located in the same warp coil, then the arc is taken along the warp coil, such as A to E, B to D, A to C.
(3) If the two places are on the same parallel, but not on the same warp coil, they will first be biased towards the poles of the hemisphere, and then deviate from the poles to go badly.
The shortest distance from a to b at two points on the same parallel in the Northern Hemisphere: first to the northeast, then to the east, and then to the southeast. (As shown in the figure below)
The shortest distance from a to b at two points on the same parallel in the southern hemisphere: first to the southeast, then to the east, and then to the northeast. (As shown in the figure below)
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
(1) The latitude difference between two points on the same meridian is about 1° apart, as shown in AB.
(2) Two points on the same parallel line, the longitude difference of 1 ° is about 111×cos φ km (φ represents the latitude value of the parallel line), as shown in the figure AC.
(3) Set the "scope"
Spans an area with the same number of latitudes and longitudes, and the higher the latitude, the smaller the actual range represented, as in (1) > (2), (3) < (4) in the following figure.
(4) Fixing the "symmetry point position"
(1) Two points about equatorial symmetry: the longitude is the same; the number of latitudes is the same but the latitudes of north and south are opposite. Such as A(40°N, 20°W) and B().
(2) Two points about the symmetry of the earth's axis: the longitude is relative, and the sum of the longitude degrees is 180°; the latitude is the same. Such as A(40°N, 20°W) and C().
(3) Pairs of metatarsal points — two points of symmetry concerning the center of the earth: the meridians are opposite, and the sum of the longitude degrees is 180°; the latitude number is the same but the north and south latitudes are opposite. Such as A(40°N, 20°W) and D().
(5) Set the "shortest route"
The two points on the sphere, and the inferior arc on the large circle that passes through these two points is the shortest route.
(1) If the two places are on the same equator, they will go in an inferior arc along the equator.
(2) If the longitude difference between the two places is 180°, that is, it is located in the same warp coil, then the arc is taken along the warp coil, such as A to E, B to D, A to C.
(3) If the two places are on the same parallel, but not on the same warp coil, they will first be biased towards the poles of the hemisphere, and then deviate from the poles to go badly.
The shortest distance from a to b at two points on the same parallel in the Northern Hemisphere: first to the northeast, then to the east, and then to the southeast. (As shown in the figure below)
The shortest distance from a to b at two points on the same parallel in the southern hemisphere: first to the southeast, then to the east, and then to the northeast. (As shown in the figure below)
Reverse thinking
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
(1) The latitude difference between two points on the same meridian is about 1° apart, as shown in AB.
(2) Two points on the same parallel line, the longitude difference of 1 ° is about 111×cos φ km (φ represents the latitude value of the parallel line), as shown in the figure AC.
(3) Set the "scope"
Spans an area with the same number of latitudes and longitudes, and the higher the latitude, the smaller the actual range represented, as in (1) > (2), (3) < (4) in the following figure.
(4) Fixing the "symmetry point position"
(1) Two points about equatorial symmetry: the longitude is the same; the number of latitudes is the same but the latitudes of north and south are opposite. Such as A(40°N, 20°W) and B().
(2) Two points about the symmetry of the earth's axis: the longitude is relative, and the sum of the longitude degrees is 180°; the latitude is the same. Such as A(40°N, 20°W) and C().
(3) Pairs of metatarsal points — two points of symmetry concerning the center of the earth: the meridians are opposite, and the sum of the longitude degrees is 180°; the latitude number is the same but the north and south latitudes are opposite. Such as A(40°N, 20°W) and D().
(5) Set the "shortest route"
The two points on the sphere, and the inferior arc on the large circle that passes through these two points is the shortest route.
(1) If the two places are on the same equator, they will go in an inferior arc along the equator.
(2) If the longitude difference between the two places is 180°, that is, it is located in the same warp coil, then the arc is taken along the warp coil, such as A to E, B to D, A to C.
(3) If the two places are on the same parallel, but not on the same warp coil, they will first be biased towards the poles of the hemisphere, and then deviate from the poles to go badly.
The shortest distance from a to b at two points on the same parallel in the Northern Hemisphere: first to the northeast, then to the east, and then to the southeast. (As shown in the figure below)
The shortest distance from a to b at two points on the same parallel in the southern hemisphere: first to the southeast, then to the east, and then to the northeast. (As shown in the figure below)
Reverse thinking
According to the direction of rotation, the east-west longitude and the north-south latitude are judged
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
(1) The latitude difference between two points on the same meridian is about 1° apart, as shown in AB.
(2) Two points on the same parallel line, the longitude difference of 1 ° is about 111×cos φ km (φ represents the latitude value of the parallel line), as shown in the figure AC.
(3) Set the "scope"
Spans an area with the same number of latitudes and longitudes, and the higher the latitude, the smaller the actual range represented, as in (1) > (2), (3) < (4) in the following figure.
(4) Fixing the "symmetry point position"
(1) Two points about equatorial symmetry: the longitude is the same; the number of latitudes is the same but the latitudes of north and south are opposite. Such as A(40°N, 20°W) and B().
(2) Two points about the symmetry of the earth's axis: the longitude is relative, and the sum of the longitude degrees is 180°; the latitude is the same. Such as A(40°N, 20°W) and C().
(3) Pairs of metatarsal points — two points of symmetry concerning the center of the earth: the meridians are opposite, and the sum of the longitude degrees is 180°; the latitude number is the same but the north and south latitudes are opposite. Such as A(40°N, 20°W) and D().
(5) Set the "shortest route"
The two points on the sphere, and the inferior arc on the large circle that passes through these two points is the shortest route.
(1) If the two places are on the same equator, they will go in an inferior arc along the equator.
(2) If the longitude difference between the two places is 180°, that is, it is located in the same warp coil, then the arc is taken along the warp coil, such as A to E, B to D, A to C.
(3) If the two places are on the same parallel, but not on the same warp coil, they will first be biased towards the poles of the hemisphere, and then deviate from the poles to go badly.
The shortest distance from a to b at two points on the same parallel in the Northern Hemisphere: first to the northeast, then to the east, and then to the southeast. (As shown in the figure below)
The shortest distance from a to b at two points on the same parallel in the southern hemisphere: first to the southeast, then to the east, and then to the northeast. (As shown in the figure below)
Reverse thinking
According to the direction of rotation, the east-west longitude and the north-south latitude are judged
This method of judgment is suitable for polar projection maps and their variant diagrams.
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
(1) The latitude difference between two points on the same meridian is about 1° apart, as shown in AB.
(2) Two points on the same parallel line, the longitude difference of 1 ° is about 111×cos φ km (φ represents the latitude value of the parallel line), as shown in the figure AC.
(3) Set the "scope"
Spans an area with the same number of latitudes and longitudes, and the higher the latitude, the smaller the actual range represented, as in (1) > (2), (3) < (4) in the following figure.
(4) Fixing the "symmetry point position"
(1) Two points about equatorial symmetry: the longitude is the same; the number of latitudes is the same but the latitudes of north and south are opposite. Such as A(40°N, 20°W) and B().
(2) Two points about the symmetry of the earth's axis: the longitude is relative, and the sum of the longitude degrees is 180°; the latitude is the same. Such as A(40°N, 20°W) and C().
(3) Pairs of metatarsal points — two points of symmetry concerning the center of the earth: the meridians are opposite, and the sum of the longitude degrees is 180°; the latitude number is the same but the north and south latitudes are opposite. Such as A(40°N, 20°W) and D().
(5) Set the "shortest route"
The two points on the sphere, and the inferior arc on the large circle that passes through these two points is the shortest route.
(1) If the two places are on the same equator, they will go in an inferior arc along the equator.
(2) If the longitude difference between the two places is 180°, that is, it is located in the same warp coil, then the arc is taken along the warp coil, such as A to E, B to D, A to C.
(3) If the two places are on the same parallel, but not on the same warp coil, they will first be biased towards the poles of the hemisphere, and then deviate from the poles to go badly.
The shortest distance from a to b at two points on the same parallel in the Northern Hemisphere: first to the northeast, then to the east, and then to the southeast. (As shown in the figure below)
The shortest distance from a to b at two points on the same parallel in the southern hemisphere: first to the southeast, then to the east, and then to the northeast. (As shown in the figure below)
Reverse thinking
According to the direction of rotation, the east-west longitude and the north-south latitude are judged
This method of judgment is suitable for polar projection maps and their variant diagrams.
(1) If the direction of rotation is counterclockwise, it is a top view of the northern hemisphere, and the latitude shown is the north latitude (Figure 1); if the direction of rotation is clockwise, the latitude shown is the south latitude (Figure 2).
Video loading...
[Syllabus Presentation]
1. The shape and size of the earth.
2. Globes, graticules and their geographical significance.
3. Directions, scale bars, common legends, and annotation on the map.
[Interpretation of the syllabus]
1. Regional cognition: Locate the area through the graticule.
2. Geographical practice: use map knowledge to calculate distances, determine locations and directions, etc.
1． The shape and size of the Earth
(1) The shape of the earth: The earth is an ellipsoid.
(2) The size of the earth
2． globe
(1) Meridians and parallels
<col>
<col>
<col>
meridian
parallel
definition
On a globe, an arc connecting the north and south poles and perpendicular to the parallel
On the globe, the equator and the circle with the equator
Icon
Start line
Prime Meridian: The meridian that passes through the original site of the Greenwich Observatory
Equator: A parallel equal to the distance between the poles
peculiarity
All warp lengths; the warp is a semicircular arc, and the two opposing meridians form a warp coil (basically equal to the equatorial length)
Each parallel is a self-enclosed circle (weft coil); it is the largest weft coil, and the closer you go to the poles, the smaller the weft coil becomes, and shrinks to a point at both poles
function
Indicates the north-south direction (limited direction, the North Pole is the northernmost point of the Earth, and the South Pole is the southernmost point of the Earth)
Indicates the east-west direction (infinite direction, only comparison can distinguish things)
(2) Longitude and latitude
<col>
<col>
<col>
longitude
latitude
Icon
divide
It is divided into 180° from east to west
From south to north, it is divided into 90 degrees
distribution
law
The more east the degree of longitude, the more west the degree of longitude
The more north the degrees of the north latitude, the more south the degrees of the south latitude
divide
hemisphere
20°W is east to 160°E and 20°W is west to 160°E
To the north is the northern hemisphere, and to the south is the southern hemisphere
Special Sutra
Latitude (line)
(1) the dividing line between east and west longitude;
(2) The meridian roughly coincides with the international date change line
(1) The latitude line is the middle and low latitude boundary, and the latitude line is the middle and high latitude boundary;
(2) It is the boundary between tropical and temperate zones, and the boundary between temperate zones and cold zones
Supplemental dialing
Three common types of graticule diagrams
Easy to mistake and easy to mix
1． The eastern and western meridians and the eastern and western hemispheres are different
2． High, medium and low latitude and temperature bands are divided differently
Geographical practice
Please draw a side view of the Earth's graticule, with a 30° difference in values between adjacent longitude and latitude.
answer
The drawing is in line with the meaning of the topic.
3． Applications of graticules
(1) Set the "direction"
(1) Top view The North Pole is near the North (North-South Direction: Judging by reference to the Pole, near the South Pole, distance)
(2) Side view: The unmarked direction is determined by "up north down south left west right east".
(2) Set the "distance"
(1) The latitude difference between two points on the same meridian is about 1° apart, as shown in AB.
(2) Two points on the same parallel line, the longitude difference of 1 ° is about 111×cos φ km (φ represents the latitude value of the parallel line), as shown in the figure AC.
(3) Set the "scope"
Spans an area with the same number of latitudes and longitudes, and the higher the latitude, the smaller the actual range represented, as in (1) > (2), (3) < (4) in the following figure.
(4) Fixing the "symmetry point position"
(1) Two points about equatorial symmetry: the longitude is the same; the number of latitudes is the same but the latitudes of north and south are opposite. Such as A(40°N, 20°W) and B().
(2) Two points about the symmetry of the earth's axis: the longitude is relative, and the sum of the longitude degrees is 180°; the latitude is the same. Such as A(40°N, 20°W) and C().
(3) Pairs of metatarsal points — two points of symmetry concerning the center of the earth: the meridians are opposite, and the sum of the longitude degrees is 180°; the latitude number is the same but the north and south latitudes are opposite. Such as A(40°N, 20°W) and D().
(5) Set the "shortest route"
The two points on the sphere, and the inferior arc on the large circle that passes through these two points is the shortest route.
(1) If the two places are on the same equator, they will go in an inferior arc along the equator.
(2) If the longitude difference between the two places is 180°, that is, it is located in the same warp coil, then the arc is taken along the warp coil, such as A to E, B to D, A to C.
(3) If the two places are on the same parallel, but not on the same warp coil, they will first be biased towards the poles of the hemisphere, and then deviate from the poles to go badly.
The shortest distance from a to b at two points on the same parallel in the Northern Hemisphere: first to the northeast, then to the east, and then to the southeast. (As shown in the figure below)
The shortest distance from a to b at two points on the same parallel in the southern hemisphere: first to the southeast, then to the east, and then to the northeast. (As shown in the figure below)
Reverse thinking
According to the direction of rotation, the east-west longitude and the north-south latitude are judged
This method of judgment is suitable for polar projection maps and their variant diagrams.
(1) If the direction of rotation is counterclockwise, it is a top view of the northern hemisphere, and the latitude shown is the north latitude (Figure 1); if the direction of rotation is clockwise, the latitude shown is the south latitude (Figure 2).
(2) If the longitude increases in the direction of rotation, it is the east longitude, and vice versa, the west longitude (figure 1 shows both the east and the west longitude, and Figure 2 has only the west longitude).
![Between heaven and earth, people are precious. Establish a monarch and a herdsman, and follow the rules for it. Ruts and horses, four poles of longitude and latitude. Dethroned and prosperous. Yu Shuoxiansheng, President of the State Domain. The five feudal lords, the Ida prison, there are burns[fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)