【问题背景】在中考复习过程中发现学生的做错题目常常是由于对物理概念缺乏深刻理解导致的.殊不知物理概念是理性思维的基本形式和工具,是建构物理科学理论体系的基本材料.如果概念含糊,就不可能真正掌握物理基础知识,不可能有效构建物理模型,不可能形成清晰的思维过程,在解决物理问题时不能果断作出判断、不能快速挖掘有效信息建立未知量与已知量之间的联系,导致解题效率低下.因此,在初中物理教学中,概念教学既是重点,又是难点.搞好物理概念的教学,使 【Problem Background】 It is often caused by the lack of a deep understanding of the concept of physics during the exam review process.It is not known that the physical concept is the basic form and tool of rational thinking and the basic material for constructing the theoretical system of physical science.If Concept ambiguity, it is impossible to really grasp the basic knowledge of physics, it is impossible to effectively build a physical model, it is impossible to form a clear process of thinking, in resolving physical problems can not be decisive to judge, can not quickly find effective information to establish the amount of unknowns and known amount Therefore, in the junior high school physics teaching, the concept of teaching is not only the focus, but also difficult.Physical teaching of physical concepts, so that