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绝对值的概念是初中代数的一个重要概念,由于绝对值概念比较抽象,所以它一直是同学们学习中的一个难点.为帮助同学们深刻地掌握绝对值的概念,本文从多种角度介绍绝对值的几何意义和代数意义,并通过各种题型巩固绝对值的概念.一、几何意义一个数a的绝对值就是数轴上表示数a的点与原点的距离.数轴是初中代数中数形集合思想最简单也是最基本的表示形式,利
The concept of absolute value is an important concept of junior high school algebra.It has been a difficult point for students to learn because of the abstract concept of absolute value.In order to help students master the concept of absolute value deeply, The meaning of the value of geometry and algebraic significance, and through a variety of questions to consolidate the concept of absolute value.General significanceAn absolute value of a number is the number of points on the axis that the number of points a distance from the origin of the number of axes is junior high school algebra in the form Aggregation thinking is the most simple and most basic form of expression, Lee