在小学数学应用题教学中,我们常常会遇到一些如“假设类”“和倍类与差倍类”及“年龄类”等有关条件隐蔽、难以理解的题目,若用平常普通方法解题,往往教师讲解得头头是道,但学生听得却是一头雾水,教学效果不佳。如用线段图求解,把抽象的问题直观形象有效地呈现出来,这样不仅便于教师分析和学生理解,而且更有利于培养学生的逻辑思维能力和学习兴趣。 In elementary mathematics teaching, we often encounter some problems such as “hypothetical class”, “double class and double class” and “age class”, which are hidden and hard to understand. If The usual way to solve the problem, teachers often give it a go, but students are confused, poor teaching. Such as the use of line graph to solve, the abstract visualization of the problem effectively presented, so not only facilitate teacher analysis and student understanding, but also more conducive to developing students’ logical thinking ability and interest in learning.