相异构想是学生围绕前概念构建起来的错误思维形式,它对学生的物理学习有着较大干扰。本文结合实践,从理论研究出发,提出基于相异构想转变的高中物理概念教学模式,并以“牛顿第三定律”的教学为例,阐明其具体操作。 Discrepancy is a wrong way of thinking that students construct around the preconception, which has a great disturbance to students’ physics study. Based on the practice and from theoretical research, this paper puts forward the high school physics concept teaching mode based on the change of dissimilar conception, and takes the teaching of “Newton’s Third Law” as an example to illustrate its concrete operation.