教材中有一些典范性的习题,它们或者是重要的结论,或者体现某种数学思想方法,或者是某个一般数学命题的具体形式,以它们为起点进行变更、转化、引深、拓展、延伸,能充分挖掘出此类习题丰富的内涵,而以“学生课外自主探索、师生课内合作研讨”为主要特征的“自探互研”式的教学 There are some typical exercises in the textbooks. They are either important conclusions or embody a certain mathematical thinking method or a specific form of a general mathematical proposition. They are used as a starting point for change, transformation, introduction, expansion, and extension. Can fully dig out the rich connotations of such exercises, and the “self-exploration and mutual research” teaching is the main feature of “Students’ Extracurricular Autonomous Exploration, Teacher-student Co-curricular Cooperation Seminar”.