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利用线段解答数学问题是教师要传授给学生的必须掌握的一项基本解题技巧。因为线段图可以将题中蕴涵的抽象的数量关系以形象、直观的方式表达出来,能有效地促进问题的解决。但也不是所有的学生喜欢用线段图来解决问题,如果教师一味强调要求所有学生必须用线段图来解决问题,很有可能对学生的问题解决能力以及数学思维能力的发展带来消极的影响,所以在数学中要根据学生的实际知识经验、思维发展水平恰到好处地运用线段
Using line segments to answer math problems is a basic problem-solving skill that teachers must pass on to students. Because the line graph can express the number of questions contained in the relationship between the number of images, intuitive way to express, can effectively promote the solution of the problem. However, not all students like to use line drawing to solve the problem. If teachers insist that all students must use line drawing to solve the problem, it is likely to have a negative impact on students’ problem-solving ability and the development of mathematical thinking ability. So in mathematics according to the actual knowledge and experience of students, thinking level of development just use the line segment