郑丽凤
【摘 要】自新课改被提出并得到稳步推进以来,小学数学教学结构发生了翻天覆地的变化,“数形结合”思想不断被渗透到教育工作当中,越来越多的教师开始利用多媒体和其他现代教育工具创造的便利条件进行教学,利用“数形结合”教学方法丰富数学教学活动。本文对“数形结合”教学方法的价值,及如何运用展开深入分析,提出了以形助教、落实过程与方法、实践教学等具体策略。
【关键词】数形结合;教学方法;运用分析
中图分类号:G623.5 文献标识码:A 文章编号:0493-2099(2021)13-0076-02
A Brief Analysis of the Application of the Teaching Method of "Combination of Number and Shape" in Primary School Math Class
(Huangshi Central Primary Schoola, Lichaeng District, Putian City, Fujian Province,China) ZHENG Lifeng
【Abstract】Since the new curriculum reform was proposed and steadily promoted, the structure of elementary school mathematics teaching has undergone earth-shaking changes. The idea of "combination of number and shape" has been infiltrated into educational work, and more and more teachears have begun to use multimedia and other convenient conditions created by modern educational tools are used for teaching, and the teaching method of "combination of number and shape" is used to enrich mathematics teaching activities. This article conducts an in-depth analysis of the value of the "combination of number and shape" teaching method and how to use it, and puts forward specific strategies such as teaching aids with shapes, implementation processes and methods, and practical teaching.
【Keywords】 Combination of number and shape; Teaching method; Application analysis
眾所周知,数学是公认的逻辑性强、抽象性高、不易理解、对逻辑和空间思维要求较高的综合性学科,对小学生而言有着较大的学习、理解和应用难度。因此,在小学数学教学活动中,教师需要对学生的现实情况、教育的最终目标和学科的基本结构均形成清晰、客观、正确的认识,进而将三者结合起来,寻找能够提高教学效率与质量的方式方法。
一、运用“数形结合”方法的价值
“数形结合”将图形和数量关系结合在一起并共同呈现在学生面前,这与小学生的思维模式是极其符合的,能够让他们在自己习惯的学习环境中迅速理解相关知识,透过图形发现数学规律。尤其是对于几何教学活动,将对应的图形直接展示在学生眼前,让他们调动自己的生活经验、迁移知识基础观察并且思考,可以让学生在最短的时间内发现新知与旧识之间的联系,这对其空间思维、迁移学习能力的发展均大有帮助。……