Olympic Mathematics is not a book, but a systematic curriculum system. In primary school, first of all, the in-class mathematics system is the foundation, and the extracurricular mathematics system is more extensive. There are calculation, application problems, counting, number theory, geometry, combinatorial mathematics (miscellaneous problems) and so on. Each category has different knowledge points. For example, application questions are divided into many different classification application questions, such as travel, age, profit and loss, concentration, engineering and so on.
As parents, it is suggested to systematically understand the syllabus of extracurricular mathematics examinations in all grades, which is a test of the comprehensive application of knowledge points. Mathematics is a long-term systematic learning feedback, and only in this way can it be improved steadily.