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理科教师都知道放大镜、望远镜和显微镜的功能,但是为什么这些仪器能起放大作用,由于这个道理看来是浅显的,因此通常不对学生作这方面的解释了.本文将介绍一些我们在课堂教学上使用的关于视觉和放大的一些概念,以及一些有关资料,以希望对其他教师的教学能有所帮助.
Science teachers all know the functions of magnifiers, telescopes, and microscopes, but why these instruments can play a role in amplification, because this principle seems to be shallow, it is usually not explained to students in this regard. This article will introduce some of our classroom teaching Some of the concepts used in the visual and zooming, as well as some relevant information, in hopes of helping other teachers’ teaching.