1, 1 In junior high school mathematics teaching practice, it is of great significance to explore classified discussion teaching strategies based on the perspective of mathematical thought with the goal of guiding students to realize the comprehensive application and combination of different knowledge points. Taking the teaching of "circle angle" as an example, this paper explores the strategy of infiltrating the idea of classified discussion in junior high school mathematics teaching.

2, 2 Teaching exploration of cultivating mathematical thinking based on classified discussion —— Taking the teaching of the basic nature of circle as an example.

3. The ending problem of mathematics is inseparable from the law of rounded corners.