Textbook knowledge induction
Systematically sort out the knowledge of the textbook, explain the knowledge points in detail, highlight the key points, eye-catching notes, combine pictures and texts, and interpret the important and difficult content with comics and lead lines and annotations, so that students can more easily grasp the relevant knowledge points.
6.1 Square Root
6.2 Cube Root
6.3 Real Numbers
The study of real numbers in junior high school mathematics is an important stage in mathematics learning, which lays the foundation for students to further study mathematics and other subjects. Real numbers, including rational and irrational numbers, are one of the basic concepts in mathematics. In the process of learning real numbers, students need to master the basic knowledge of the definition, properties, and operations of real numbers, and be able to apply this knowledge to solve practical problems.
After mastering the basic concepts of real numbers, students need to learn the properties and operations of real numbers. Real numbers have fundamental properties such as completeness, transitivity, additive commutative law, and multiplicative commutative law. Students need to understand the meaning of these properties and be able to use them to perform real calculations. The operations of real numbers include addition, subtraction, multiplication and division, etc., and students need to master the definitions and rules of these operations, and be able to use them to perform complex operations.
In the learning process, students need to listen carefully, do more exercises, think actively and explore, so as to better grasp the knowledge and skills of real numbers.