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初中物理光学部分主要内容包括光的直线传播现象、光的反射现象和折射现象及其应用。其中透镜成像及其应用是光的折射现象的重要应用。这部分知识要求记的多,学生学起来很是费力,上课时除了要多让学生动手动脑外,还要注意提炼解题方法,本文就几个疑难问题做一些例题分析和方法的提炼。
The main part of the junior high school physics optics includes the phenomenon of linear propagation of light, the phenomenon of light reflection and refraction and its application. Among them, the imaging of the lens and its application are important applications of the phenomenon of refraction of light. This part of the knowledge required to remember more, students learn it is very laborious, in addition to giving students more hands-on class, but also pay attention to refining the problem-solving methods, this article on a few difficult problems to do some sample analysis and method of refining.