加深学生对绝对值概念的理解舒城县马河口中学江世　绝对值概念，是教学中的一个重点，同时也是一个难点。要学生正确掌握、熟练运用这一概念，需要有一个过程，应加强以下基础训练。１、能否找到这样的有理数ｘ，使得｜ｘ＋３｜＜－２，为什么？一般来说，学生对此题会这... Deepening students’ understanding of the concept of absolute values ​​The absolute value concept of Jiangshi in Mahekou Middle School of Shucheng County is a key point in teaching and it is also a difficult point. It is necessary to have a process for students to master and use this concept correctly. The following basic training should be strengthened. 1. Can you find such a rational number x such that |x+3|<-2, why? In general, students ask this question...