When we thought that Huangzhuang education was rushing out of Beijing and about to sweep the country, we did not expect that it could not wait to go to the world.
For example, the recently hot genius girl Gu Ailing, sat on the 1580 points, only 20 full scores, Ailing and her mother once admitted in an interview, every summer vacation will return to China to study, one of the important contents is to learn the Olympic number in Haidian.
In order to encourage Gu Ailing to insist on studying, Gu Ailing's mother told her, "Study in Huangzhuang for ten days, catch up with the United States for a year."
Speaking of the "national fever" of the Olympic number, it is really not covered. Gu Ailing also said in the interview that as soon as she returned to Beijing when she was a child, there were many children playing together. As a result, when I came back after the fifth grade, I found that the children were gone - it turned out that they had all run to Haidian Huangzhuang to count the Olympics!
What Gu Ailing said is not false. Chang Dad still remembers that before the double subtraction, because of the help of education and training institutions, the Olympic number is simply the same as the existence of the popular junior high school "admission coupon", and many children go forward to follow and walk on the road of learning the Olympic number.
However, there are also many parents worried that the Olympic number is too difficult, although to the child to report the class, but the entanglement in the heart has not been broken, after all, experts have said, "only 5% of the children are suitable for learning the Olympic number", their children are afraid to learn in vain, time and energy cost a lot, but finally fell a companion.
Until half a year ago, the double reduction struck, the institutions left the field, the boom receded, and the atmosphere of learning the Olympic number gradually cooled down with the general trend of training weakening.
However, in Chang Dad's view, the more such a time, when the Olympic numbers are not rolled, not Olympic, not crazy, and can really return to the essence of mathematical learning, it is more worth talking about the topic of "learning Olympic numbers".
8 years of engineering learning background, many times in the electronic design competition to achieve good results, plus wrote a number of professional books - mathematics is the basic subject of engineering, Chang Dad thinks that he still has a voice in mathematical learning. Therefore, today I will combine my years of learning experience and the experience of learning Olympiad from preschool to talk to you about my ideas.
The words of the family, do not like to spray, the bar is you right.
01
[ Do you want to learn Olympiad? A second-grade math problem changed my mind
When Chang Dad was in high school, he was recommended by the school to participate in the Olympiad of Informatics (full name: Informatics Olympiad, which is a subject competition widely carried out among middle school students, and the nature of the competitions such as physics and mathematics), although my academic performance was still good at that time, but I had never been exposed to the Olympic mathematics, so that competition was also a big challenge.
I remember there was a mathematical term at that time, which was also a computer algorithm concept, called "graph traversal" (that is, starting from any vertex in the graph, visiting all the vertices in the graph once and only once), and I understood it very hard, feeling very abstract, and different from the mathematical concepts I had learned in textbooks before.
("Graph Traversal" exercise in informatics Olympiad)
Later, when I accidentally looked through the textbook, I found that the "one stroke" I learned in the second grade was not the "figure traversal" I encountered in the Informatics Olympiad?!
A "one-stroke" graphic is a continuous traversal of all the edges in the graph starting from a certain point in the graph (traversal means that each edge is drawn exactly once, without repeating the route).
Zoom in, for example, this one (question 3 in the figure below):
The floor plan of the children's playground, what two points should the entrances and exits be located to walk through all the children's playground passages without repeating?
The essence of this problem is the question of how the path is not repeated, which is consistent with the core concept of "graph traversal".
My feeling at the time was "shock"! Unexpectedly, when I participated in the Olympiad of Informatics in high school, I had a concept that I was already learning in the second grade. In other words, if I grew up knowing that there was a "stroke of the picture" and the difference between the singularities and even the dots, I could find a good way, and the biggest problem at that time was that I didn't know this knowledge, and my thinking was limited.
In addition, not only the concept of "graph traversal" in programming is related to the Olympic number, many programming concepts such as recursion, stack, data structure, algorithm, reverse thinking, modeling ability, etc., can actually find shadows in the primary school Olympiad.
After this incident, my view of the Olympiad has also changed. Although Xiao Xiaochang was learning the Olympic Mathematics at that time, in fact, I still think in my heart that only a small number of children are suitable for learning, and the others are cannon fodder, and there is no need to wade through this water.
But after this incident, I found that the process of learning the Olympic number is actually the process of helping the child open the mind, there are some Olympic number problems that let the brain simulate computer programming ideas to solve the problem, the child's brain has been trained since childhood, and it will be easier to learn things in the future, simplifying complex problems, learning ability and ability to deal with problems will be stronger.
02
[ After double subtraction ] What are the benefits of children learning to Olympiad?
It is undeniable that for a long time, the Olympic mathematics has played a very utilitarian role, as if it is simply for the purpose of further education. Therefore, after the double subtraction, many people think that they can not learn, but Chang Dad does not see it that way.
Like Xiao Xiaochang, I let him learn the Olympic numbers and was basically not affected by double subtraction. In the past, when others reported for several classes, I did not give him a "pit", and later when many institutions were running away, I did not "stop school" for him. The environment changes and does not change, he is learning according to his own rhythm. Chang Dad's insistence, there are several reasons:
The first is to consider the need for further education.
Although it is now double-reduced, the resources of good schools are still scarce at the beginning of the small ascension, and there must be the selection of students. Therefore, the Olympiad question or the elevation question with a certain degree of difficulty is still the most important degree of differentiation. This part of everyone's situation is not the same, can only do some homework on their own, if you want the child to have more choices to take the initiative, it must still rely on strength to speak, then only rely on the part of the school may not be enough.
The second is to improve children's logical thinking ability.
This sounds very false, but I will give you an example to understand. The more senior the child goes, the harder it is to learn. For example, mathematics, physics and chemistry, everyone learns the same content, and the score opens up by relying on difficult questions, so why is the topic difficult?
It is not because of the super program, but a lot of knowledge points are combined in a comprehensive topic, at this time, the advantages of learning the Olympic number are reflected: the thinking mode of Olympic number training allows children to have a more overall view, and solves complex problems into several simple problems, so as to gradually solve the problem.
The third is to increase children's confidence in learning.
Some children have good grades in school, and learning a few Olympiads will let him know that the knowledge in books is only a superficial one, so that he has the motivation to continue to learn. And children can also increase their self-confidence in the process of unlocking one puzzle after another.
Four is far away:
Nowadays, various public examinations, such as administrative ability tests, are more popular, and many logical reasoning questions are actually logic questions with the difficulty of primary/junior high school Olympiad. The common graphic law questions in Xiao'ao are basically the basic question types of the provincial examination and the national examination. For example, the following questions:
(Shanxi Province, Yunnan Province Civil Servant Examination Questions)
03
[ How to learn Olympiad?] It is recommended to follow these three principles
Regarding the confusion of parents, where to learn the Olympiad, what books to use, and what degree to learn, Chang Dad summarized 3 principles for everyone's reference.
First, children who have spare energy are suitable for learning Olympiad.
Learning Olympiad is the same as learning any other subject, and Chang Dad has always held the view that the difficulty should be suitable for the child's own level. What fits is beneficial, and what doesn't fit is harmful. For mathematics, the first thing is to lay a good foundation in school, if each test is more than 95 points, the child does have more than enough to learn, you can learn the Olympiad. If the child's foundation in school is not solid, then time and energy should still be placed in the classroom.
Second, it is not recommended to spend too much time on the Olympic numbers.
At this point, parents still need to correct their mentality. We let our children learn the Olympics, not to play the Olympic Games, to win gold and silver, but to broaden their knowledge and train their thinking. Most of the energy is still to focus on the learning in the classroom, so there is no need to exhaust all spare time on this, so that the child knows that he has this knowledge and expands it appropriately.
Third, there is no need to be too proficient.
When it comes to learning Olympiad, many parents feel that those children who are extremely talented and learn to play are the "seed players" who learn Olympiad. Once parents think like this, it will be easy to drill the tip of the bull's horn: you must learn a grade, you must get back a medal, you must drill into the five-star problem.
Not necessarily. Continuing what the previous article said, children do not have to spend too much time on the Olympic numbers, naturally do not need to learn too proficient, the basic concepts and knowledge points are firmly laid, see some typical examples to open the mind, and then find some suitable difficulty for children to do some problems to consolidate it.
There are many Olympiad problems that I found difficult during elementary school, but after learning the equation system elimination method in junior high school, it is actually very simple. Therefore, if you don't want to pick gold and silver on the Olympic numbers, you really don't have to spend too much time on it. In particular, don't drill too deeply into the off-topic puzzle.
Its practical one-sentence summary: it is enough to learn a little shallow Occult for children!
The Olympiad is learned for oneself, not for others, so you don't have to put too much pressure on yourself and your children, just stick to it according to the rhythm of your own home. "No tutoring class" is actually not a resistance, because parents can also tutor their children, and it is also possible to buy some teaching materials to learn at home, not necessarily to go to great lengths. When the "study of Olympiad" becomes simple, pure, and enforceable, the Olympiad returns to the essence of numbers.
The child of a senior architect in the technical department of our team belongs to the situation of "not enough to eat in school and needs extra materials". The child began to contact the Olympic number from the first grade, did not go to the tutoring class outside, just at the beginning the father took the teaching assistant, gave him a lecture to take him to do the problem, and after the fifth grade, the child began to teach himself with the teaching assistant, and the children who were good at Olympiad even taught themselves in junior high school mathematics, physics and chemistry. In this process, the baby's mathematical ability, learning ability, concentration and self-confidence are steadily improving.
(This winter vacation, the colleague's child himself at home listed a day of study table, parents after work to complete the statistical acceptance, it can be seen that the child can already teach themselves 1 and a half hours)
Therefore, learning the Olympic number really does not necessarily have to apply for the class, the current learning resources are so rich, choose a set of suitable teaching and auxiliary materials, and follow the learning in a down-to-earth manner, as long as the method is used correctly, the effect is not bad.