线段图就是用线段表示数量关系的图形。线段图简明、直观,便于我们分析理解题意和寻求解答方法,是一种十分重要的解答应用题的辅助手段。那么,怎样教学生画线段图呢?在教学简单应用题时,应指导学生掌握几种基本类型的线段图的画法,并初步学会利用线段图分析和解答应用题。我们知道,简单应用题共有十一种类型,即①求两数和,②求比一个数多几个的数,③求剩余,④求两数相差多少,⑤求比一个数 Line segment diagram is the number of segments with the line graph. Line graph concise, intuitive, easy for us to analyze and understand the problem and find answers, is a very important answer to the application of the auxiliary. So, how to teach students to draw lines? In the teaching of simple application questions, should guide students to master several basic types of line drawing method, and initially learn to use the line graph analysis and answer questions. We know that the simple application of a total of eleven types of questions, namely ① seeking two and, ② seeking a few more than a few numbers, ③ find the remaining, ④ find the difference between the two numbers, ⑤ seeking a number