Zhao Guifang's self-study ability refers to the ability to acquire and master knowledge through students' self-study, while mathematics self-study ability refers to the ability to independently acquire mathematical knowledge, form mathematical skills and solve mathematical problems through self-study textbooks, which is an important part of students' learning ability and an important prerequisite and guarantee for students to learn to learn. Therefore, in teaching activities, teachers not only impart knowledge to students, but more importantly, teach students the methods of learning knowledge, just as it is better to teach people to fish than to teach people to fish. Therefore, from the lower grades, teachers should consciously train students to master the scientific methods of self-study, cultivate students' self-study ability, and lay a good foundation for their long-term development.