电场强度是高中物理电学中的基础知识之一.由于“场”这一概念的特殊性,所以教学中需要与其它物理知识的教学作出区别,同时电场强度的建立与定义式又与一些物理概念的建立是相关的,因此又需要借助于前面的基础.如何实施电场及电场强度的教学,如何建立电场强度的概念并合理地 Electric field intensity is one of the basic knowledge in high school physical electricity. Due to the particularity of the concept of “field”, teaching needs to be distinguished from other physical knowledge teaching. At the same time, the establishment and definition of electric field strength are also related to The establishment of physical concepts is relevant, and therefore it is necessary to rely on the previous foundations. How to implement the teaching of electric fields and electric field strength, how to establish the concept of electric field strength and reasonably