高中物理教科书共有图表十二张,其中有的可略讲,有的需详讲。例如各地区的重力加速度、各种电解质的解电常数、各种色光的折射率等等,将数据列成图表,目的便于对比和查阅,因而只要略作介绍即可。而电磁波谱、氢原子能级图、平均结合能曲线等三张图表的要求就不同了,只有在详讲的基础上,才能较深刻地理解它的物理意义和作用。新教师由于缺乏教学经验,对图表的讲解重视不够,往往一带而过,造成知识上的缺陷。本文以三张图表为例,紧扣教材要求加以展开。一、电磁波谱无线电波、红外线、可见光、紫外线、伦琴射线、γ射线合起来按照波长的顺序(或者按频率 There are 12 charts in high school physics textbooks, some of which can be described briefly, and others need to be detailed. For example, the gravitational acceleration in various regions, the solution constants of various electrolytes, the refractive index of various color lights, and so on, the data are listed as a chart for the purpose of comparison and review. Therefore, only a brief introduction is required. The requirements of the three charts, such as the electromagnetic spectrum, the hydrogen atom energy level diagram, and the average binding energy curve, are different. Only on the basis of detailed explanation can we understand its physical significance and role more profoundly. Because of the lack of teaching experience, the new teachers do not pay enough attention to the diagrams and often pass by them, causing defects in the knowledge. This article takes three charts as an example, closely follow the requirements of the teaching materials. First, electromagnetic spectrum Radio waves, infrared rays, visible light, ultraviolet rays, roentgen rays, gamma rays are combined in order of wavelength (or according to frequency