在讲高中物理第二册(必修)“光的衍射”时,我们在教学中参照本刊1996年第6期《用孔、缝纸屏做光的干涉、衍射实验)一文中的做法,收到了较好的效果,在实践中受到很大启发.将文章中介绍的单缝纸屏改用学具制作,取材方便,简单易作,效果更佳. When we talk about the “diffraction of light” in the Second Book of High School Physics (required), we refer to the article in the article “Interference and Diffraction Experiment with Light by Holes and Slit Paper Screens” published in the 6th issue of the magazine in 1996. To a good result, in the practice has been greatly inspired. The single-slot paper screen introduced in the article is changed to the use of learning tools, easy to draw, simple and easy to make, the effect is better.