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本节在学生获得相关的物理知识的基础上,进行延伸与迁移.对于第四章《图形的相似》的知识能很好地应用,同时对后面学习《直角三角形的边角关系》一章将发挥着非常必要的铺垫作用.本节课具有交叉学科的内容,涉及初中物理光学中的一些基本知识,对于培养学生的科学素养具有十分重要的意义.在本节课的学习中,对语言表达能力、动手操作能力和观察能力的要求非常严格,相信通过本节课的学习,学生的各种能力都将有很大的提高,尤其是学生学习数学的兴趣将会得到很大的激发.
This section extends and migrates based on students’ acquisition of relevant physical knowledge, and applies well to Chapter 4, “Graphical Similarity,” while learning the “Corner Relationships of Right-angled Triangle” chapter later Play a very necessary groundwork.This lesson has the content of interdisciplinary, involving some of the basic knowledge of junior high school physics optics for the cultivation of students’ scientific literacy is of great significance.In this lesson, the language of expression Competency, hands-on ability and observational ability are very strict. I believe that the students ’abilities will be greatly improved through the study of this lesson. In particular, students’ interest in math will be greatly stimulated.