九年义务教育的目的是，提高全民族的素质，为培养有理想、有道德、有文化、守纪律的社会主义建设人才奠定基础的公民素质教育．要大面积提高教学质量，首要的问题是研究后进生问题，如何让后进生爱学、乐学问题．我93年开始教初一两个班的数学，选一个班实行“分层备课，分类 The purpose of the nine-year compulsory education is to improve the quality of the entire nation and lay a solid foundation for cultivating citizens with socialist construction talents that are ideal, moral, cultural, and disciplined. To improve the quality of teaching in a large area, the most important issue is to study the problem of backward students, and how to make the students learn to love and learn. In 1993, I began to teach mathematics in the first and second classes. I chose one class to implement "stratified class preparation and classification.