纠正对物理概念、规律的错误认识,深刻理解问题的本质,形成正确的思想方法是高三一轮复习的重要目标之一.然而,错误认识一旦形成,其干扰作用在解题中总会不由自主展现出来.难怪老师们经常感慨:“讲了多少遍,该怎么错还是怎么错.”运动合成与分解中的牵连运动问题就是一个典型案例.以绳牵连模型为例,笔者发现很多学生在以前新课学习时就没有真正理解其本质,生硬的记住速度分解方法,高三再依靠模糊的记忆拼凑出各种分解方式,知晓正确 Correcting the mistaken understanding of the concepts and laws of physics, deeply understanding the essence of the problems and forming the correct way of thinking and thinking are one of the important goals of the review of the third year of the third grade. However, once the wrong understanding is formed, its interference will always be involuntarily resolved It is no wonder teachers often feel: “how many times, how wrong or what’s wrong. ” Movement involved in the synthesis and decomposition of movement is a typical case.With the rope implicated model, for example, I found that many students Did not really understand the nature of the previous lesson in the new lesson, blunt remember speed decomposition method, the third year relies on fuzzy memory to put together a variety of decomposition methods, aware of the correct