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一、课程背景材料《光的色散》是沪科版八年级上册第二章第四节的教学内容,这节内容与生活联系非常紧密,是继学生学习了《光的反射》、《光的折射》等知识后展开的,旨在展现光学是有用的,展现光学知识渗透在社会生活的各个方面,充分体现了从生活到物理,从物理走向社会的课程理念。本节内容在光的反射、光的折射等知识为基础,进一步学习棱镜对不同单色光折射本领不同而产生的光的色散现象及
First, the course background material “Dispersion of light” is Shanghai Normal University eighth edition of the second chapter of the fourth quarter of teaching content, this section is very closely linked with life, following the students to learn the “light reflection”, “light Refraction ”and other knowledge, it is useful to show the optics. It shows the infiltration of optical knowledge into all aspects of social life and fully embodies the concept of curriculum from life to physics and from physics to society. In this section, based on the knowledge of light reflection and light refraction, we further study the chromatic dispersion of light generated by the prism on the difference of the refractive power of different monochromatic light and