应用题的数量关系,借助线段图,可以直观、形象地表示出来。教学中,切实帮助学生学会画线段图,是学习解应用题的有效方法之一。把数量关系转化为线段图,由线段图转化为算式,是“线段图解法”的两个思维过程。解决由数量关系转化为线段图是图解 The relationship between the number of questions, with line segments, you can visually and vividly expressed. Teaching, and effectively help students learn to draw line drawings, is an effective way to solve the application of the problem. The number of relations into line segments, from line segments into the formula, is the “line graphic method” of the two thinking process. To solve the relationship between the number of converted into line diagram is illustrated