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数学是一门具有高度抽象性、逻辑性和应用性的学科。而小学阶段,学生的思维主要以形象思维为主,故对抽象的数学问题的学习,随着年级的升高,解题困难愈来愈明显。如何缩短抽象与形象之间的距离,在抽象与形象间建立起一条纽带,使抽象问题形象化?在教学中,教师有必要指导学生学会并画好示意图,方能有效地化抽象为直观、化复杂为简单、化隐性为显性、化无序为有序,帮助学生正确解决问题。
Mathematics is a highly abstract, logical and applied discipline. However, in the primary school stage, students’ thinking is mainly based on image thinking. Therefore, learning of abstract math problems becomes more and more obvious as the grade increases. How to shorten the distance between the abstract and the image and establish a bond between the abstract and the image so as to visualize the abstract problem? In the teaching, teachers should instruct the students to learn and paint the sketch so that the abstract can be effectively used as intuition, The complexity is simple, the latent is dominant, the disorder is orderly, helping students solve the problem correctly.