人教版教科书《数学》九年级上册第24章,有不少典型的例题或习题,其解决过程不仅需要扎实的基础知识和基本技能,而且还需要一定的数学思想和方法.因此深层次挖掘例题或习题的功能,对于提高同学们的解题能力会有很大帮助.本文以课本习题为例,进行详细说明. PEP textbook “Mathematics” Grade 9 of the first volume of Chapter 24, there are many typical examples or exercises, the solution process requires not only solid basic knowledge and basic skills, but also requires a certain number of mathematical ideas and methods. Therefore deep-level mining The function of example questions or exercises will be of great help to improve the problem solving ability of the students. This paper takes textbook exercises as an example to explain in detail.