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在“中学物理”杂志2007第一期上发表了一篇傅智云老师的文章“巧设实验化解难点”(绳棍的速度分解问题)该文章构思巧妙,通俗易懂,让学生一看就会,但是最大的缺点就是学生只是从实际模型知道了这个问题的解决方法,没有从理论上弄清楚这个问题.也许短时间可以解决类似问题,可是难保时间长了学生的遗忘问题.实际上绳棍的速度分解问题刚好也是运动的合成与分解里面最难的一个知识点,我个人觉得类似问题还是先从原理
In the “Physical Physics Physics” magazine’s first issue of 2007, he published an article by Fu Zhiyun’s teacher, “The Skills of Explaining the Difficulties of Experiments” (speed stick decomposition problem). This article is ingenious, easy to understand, and accessible to students. If you look at it, but the biggest drawback is that students only know the solution to this problem from the actual model, and they do not understand the problem theoretically. Maybe they can solve similar problems in a short time, but it will take a long time to forget the problems of students. The problem of speed decomposition on the stick is also the most difficult one in the synthesis and decomposition of the movement. I personally think that the similar problem still comes from the principle.