Study On The Physical Images Teaching Of Lectromagnetic In High School

the teaching with physical picture is based on the cognizance of teaching theory, the focus on the establishment of frame and structure of physical knowledge, and encourage the recognized and explorotary method known as "discover method". The structure of physical pictures play great attention to their element and structure. They are establised layer by layer, and closely related with each other. electromagnetism is the tough point of physical teaching and learning in the senior middle school.Clear images of electromagnetic can be easy to impress in the minds of the students by using this teaching method. Also, it has particular advantage in solving the pratical physical problems.The paper firstly presents the previous results of physical image and relevant teaching and gives the definition of key concept of physical images. It has been pointed out that the physical image is a clear and reasonable dynamic system based on the perceptual knowledge of the scientific conception of physics, physics laws and physical principle,(including the phenomenon, fact and process). Secondly, the theoretical principle, the characteristics and fundamental physical images of electromagnetic in high school, and common drawbacks have been systematically introduced. Next, combined theory with practice in the physical images teaching, basic ideas and methods of physical images of electromagnetic in high school have been provided. In the first step, reasonably setting up the circumstance is helpful to make a perceptual knowledge of electromagnetic. In the second step, build the scientific physical concept to shape the foundation of the images. In the third, enhance the experience of building physical images by reasonable and scientifically researching. In the fourth step, shape relevant model to imagine the process of electromagnetic. In the fifth step, connect the concept, model and principle to form frame of the physical images of electromagnetic. In the last step, examples of physical images teaching are presented with "Explore the Produce conditions of electromagnetic induction " and "Lenz law" as the background.It has been demonstrated by the practice that the physical images teaching achieved good results among the students, such as motivating the students, building the ability of practice and abstract thinking and formatting of consciousness of images. However, it is should be a long-term process and should be implemented in the program of physical teaching in order to achieve better results.