The purpose is to train mathematicians and a few elites, but not for all students, so that every student can get universal development. The standard clearly points out that "the mathematics curriculum in compulsory education should be basic, universal and developmental, so that mathematics education can face all students and realize that everyone can learn valuable mathematics;" Everyone can get the necessary mathematics; Different people have different developments in mathematics. " "Everyone learns valuable mathematics" means that mathematics, as an educational content, should meet the needs of students' future social life, meet the requirements of students' personality development, and be conducive to inspiring thinking and developing intelligence. "Everyone can get the necessary mathematics" means that "valuable mathematics" should and can be mastered by every student, and special attention should be paid to students with learning difficulties. Let them not be too tired and afraid of math. "Different people get different development in mathematics" means that the mathematics curriculum should face each different individual, adapt to each student's different development needs, and let each student improve to a certain extent on the original basis. Second, mathematics is a part of human life. The standard points out that mathematics is a tool of human life; Mathematics is the language used by human beings to communicate; Mathematics is the foundation of all major technological developments; Mathematics can give people creativity; Mathematics is a human culture, and so on. In other words, mathematics is a part of human life. Mathematics curriculum can't simply start with those perfect mathematical structures as the final result.