班级教学中学生学习的个别差异是最普遍的现象,九年制义务教育的实施,小学毕业升入初中,初中学生学习数学的基础差异随之扩大;从教的方面看,目前仍有不少教师仍然按照中等生的程度施教,仅考虑课程目标的基本要求,在教学目标层次的体现、教学方法的层次化作用、课堂设问难度、课堂练习和家庭作业的分类区别要 The individual differences in student learning in class teaching are the most common phenomena. The implementation of nine-year compulsory education, primary school graduation and junior high school graduation, and the differences in the basics of learning mathematics among junior high school students are expanding. From the teaching perspective, there are still many teachers still According to the level of middle school students, only the basic requirements of the course objectives are taken into consideration, and the classification of teaching objectives, the hierarchical role of teaching methods, the difficulty of classroom setting, the class exercises, and the classification of homework