The book that is suitable for Sichuan New High School in 2022 to improve the foundation of mathematics is the May 3rd General Review Edition, which has two kinds: red is simple and purple is difficult. "Innovative design", green, must be brushed in the college entrance examination. Then there are medium-sized ones, such as "golden paper" and "crazy training for a small problem" According to relevant materials, you can find books about senior three: complete interpretation of NMET, complete study plan of NMET, complete evaluation of NMET, NMET 1 vs 1, NMET12,600 sub-topics (special study and training), and 600-point problem-solving complete works. "Exam must be remembered" (a booklet compiled by knowledge points, both in junior and senior high schools) and so on. For example, "Exam Must Remember" is a booklet of some basic knowledge points, but the purpose of 600 points is to further improve academic performance. Therefore, his series of products are also graded. Even in a book, people with different learning levels will be considered, and short or high questions will be set separately. Moreover, the proportion of a knowledge point in the college entrance examination itself is different, and the difficulty of the topic should be set according to this.