义教大纲规定，初中数学教学，既要注意数学知识的系统性，又要符合学生的认识规律，特别是要处理好初中内容与小学内容的衔接。在初中数学教学中，特别是初一第一学期开始，学生的数学成绩普遍出现滑坡，造成差生面积大。有些老师误认为是由于学生小学数学没学好引起的，就停 The outline of the righteousness education stipulates that in junior middle school mathematics teaching, it is necessary to pay attention to the systematic nature of mathematics knowledge, but also to meet the students’ understanding of the law, in particular to handle the convergence of junior high school content and primary school content. In junior middle school mathematics teaching, especially the beginning of the first semester of the first year, the student’s mathematics achievement has generally appeared a decline, resulting in a large area of ​​poor students. Some teachers misunderstood that because students’ primary school mathematics did not learn well, they stopped.