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【课题】人教版初中物理八年级上册§4-5《光的色散》。【课时】1课时。【课标相关内容】通过实验了解白光的组成和不同色光混合的现象。【教材与学情分析】学生对光谱的概念比较陌生,学习光的色散和看不见的光,需要以光的反射、光的折射等知识为基础,进一步学习因不同单色光折射本领不同引发的光的色散现象。由此现象引出光谱概念后,可以先过渡到红外线、紫外线的教学,以兴趣小组为单位,提前让学生带着问题调查研究。通过讨论、交流的学习形式,初步认
【Subject】 PEP Junior High School Physics eighth grade §4-5 “light dispersion.” 【Class hours】 1 class time. 【Curriculum related content】 By experiment to understand the composition of white light and different color light mixed phenomenon. 【Textbooks and Academic Analysis】 Students are unfamiliar with the concept of spectrum. To study light dispersion and invisible light, you need to learn about the different refractive power of different monochromatic light based on the knowledge of light reflection and light refraction The dispersion of light. This phenomenon leads to the concept of spectrum, you can first transition to the infrared, ultraviolet teaching, interest groups as a unit, in advance with the students with a problem investigation. Through discussion and exchange of learning forms, preliminary recognition