在中学数学教学中,绝对值是一个很重要的概念,历来也是教学中的难点.如何改进教学方法,系统安排各阶段的教学,逐步突破这个难点,使学生牢固掌握这个概念,是一个值得深入探讨的课题.本文试将绝对值概念的教学分成形成、深化和发展三个阶段,并就每个阶段的教学要求,注意问题谈一些不成熟的看法. Absolute value is a very important concept in middle school mathematics teaching. It has always been a difficult point in teaching. How to improve teaching methods, systematically arrange teaching in various stages, and gradually break through this difficult point, so that students firmly grasp this concept is a worthwhile in-depth The topics discussed. This paper tries to divide the teaching of absolute values ​​into three stages: formation, deepening and development. It also discusses some of the immature views on the teaching requirements and attention issues of each stage.