数学思想方法是数学学科的精髓 ,也是知识转化为能力的桥梁 .在初一上学期的代数学习中已有许多内容渗透了数学思想方法 ,在平面几何入门的学习中也要注意对数学思想方法的学习领会 .本文以第一章的几何问题为例 ,谈谈数学思想方法的渗透 .一、分类讨论思想图 1例 1　如图 1中 Mathematical thought and method are the essence of mathematics, and also the bridge for transforming knowledge into ability. In algebra learning in the first semester of the first grade, there have been many contents that infiltrate mathematics thinking methods. In the learning of plane geometry, we should also pay attention to the mathematical thinking method. This article takes the geometry problem in the first chapter as an example to talk about the infiltration of mathematical thinking methods. I. Classification and discussion of ideas Figure 1 Case 1 As in Figure 1