“我听了 ,忘记了 ;我看了 ,记住了 ;我做了 ,理解了” ,这是对实验与掌握知识关系的通俗概括。因此 ,让学生进入实验环境 ,在教师的引导下 ,通过观察实验 ,操作 ,游戏等亲身实践体验 ,主动去探索新知识 ,获取新知识 ,是使学生牢固掌握知识的有效途径 ,也是教师突破教学重点和 “I listened and forgot; I saw it, remembered it; I did it, and I understood it,” which is a general summary of the relationship between experimentation and mastery of knowledge. Therefore, allowing students to enter the experimental environment, under the guidance of teachers, through observation of experiments, operations, games and other hands-on experience, to actively explore new knowledge and acquire new knowledge is an effective way for students to firmly grasp knowledge, but also teachers to break through teaching Focused and