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一、绿色视域下的教材分析光的直线传播的教学内容主要分为两个部分:一是光在同种均匀介质中沿直线传播,二是光在真空中的光速大小。光的直线传播是整个几何光学的基础,又是后面研究光的反射、折射的必备知识。第一部分内容可设计一系列的实验,通过探究活动引导学生得出光的直线传播的规律。在规律得出后要结合实验和日常生活中的应用,用光的直线传播解释影子、日食和月食、小孔成像等生活中和
First, the textbook analysis of the green field of light The linear transmission of light teaching is divided into two parts: First, light in the same homogeneous medium in a straight line, the second is the speed of light in the vacuum light size. The linear propagation of light is the basis of the whole geometrical optics and the necessary knowledge of the reflection and refraction of light afterwards. The first part of the content can design a series of experiments, through the inquiry activities to guide students to come to light the law of linear transmission. After the law is drawn, we should combine the experiment with the application in daily life to explain the shadow, solar eclipse and eclipse, hole imaging and other life in the light of linear transmission