One: the age is right. Children in grades one and two are too young to understand problems and have poor long-term memory; Coupled with illiteracy, it is not easy to calculate, and most children will have a hard time learning the Olympic Mathematics; In addition to taking part in the study of Olympic Mathematics, simply relying on parents' counseling or indoctrination often gets twice the result with half the effort, which is easy to dampen children's enthusiasm for learning Olympic Mathematics and make parents exhausted; Therefore, for most children, it is not recommended to contact Orsay too early.
Second: knowledge reserve. Children in grade three have a certain literacy foundation and mathematical calculation ability because of two years of school study; Children's interest in mathematics has begun to appear, their ability to understand and analyze problems is also growing, and their long-term memory ability has been significantly improved; At this time, most children will show great interest in learning Olympic Mathematics, and their understanding of knowledge will begin to climb to a new level.
The third and third grades are the most important stages in the knowledge arrangement system of Olympic mathematics textbooks. There are all kinds of basic knowledge of Olympic mathematics, including all kinds of simple calculation and operation rules of integers, all kinds of counting methods and rules of plane geometry, the characteristics of various typical application problems and solving methods. In particular, the characteristics and solving methods of various typical application problems are the basis of various application problems from primary school to junior high school and even senior high school, and play an extremely important role in the whole mathematics learning. No wonder some teachers of Olympic Mathematics said, "If you don't study the third-grade courses, it will be difficult to really enter the temple of Olympic Mathematics". From this, we can see the importance of the third grade course in the Olympic Mathematics textbook.
Fourth, it is relatively stable in physical and psychological development. Judging from the development law of middle school students, we usually refer to the students in Grade 3 and Grade 4 as "the students in the most easily differentiated grades", that is to say, the students in Grade 3 and Grade 4 generally develop and change physically and psychologically at this age until they have some changes in their study or discipline: some students make rapid progress in their study and discipline, others stagnate, and what's more, some students show some signs of "backwardness" in their study and discipline, which leads to the class. If there is no effective correction method, it is likely that those "underachievers" will be "underachievers" throughout their student days.
The third grade is most suitable,