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比较,是区别事物、分辨事理的常用方法,“有比较才有鉴别”.在物理教学中,运用对比实验,可以起到画龙点睛的作用,使课上得生动、易懂,教学效果得到显著增强.1运用对比实验突破教学难点在物理教学中,常遇到一些难懂的概念.如果直接给出,学生往往不易理解;如能辅以对比实验,帮助理解,难点可能就变得简单明了.如高二物理“交变电流有效值”这个概念,是教学中的难点和重点.学生对“交变电流产生的
Compare, is the common method of distinguishing things, to distinguish things, ”In comparison with the comparison of physics teaching, the use of comparative experiments, can play a finishing touch, so that the class was vivid, easy to understand, teaching effectiveness Significantly enhanced .1 the use of comparative experiments to break the teaching difficulties in physics teaching, often encountered some difficult concepts.If given directly, students are not easy to understand; if supplemented by comparative experiments to help understand the difficulties may become simple Clear, such as high school physics “alternating current RMS ” concept, is the teaching of the difficulties and priorities of students "alternating current generated