The Application Of Function Image In High Physics Teaching

Function image refers to the rectangular coordinate system by reflecting the relationship between independent variable in the point of the curve.In physics learning,the combination of function images can help students understand the physical concepts,promote the study of physical law,analyze the experiment in-depth,but also to solve physical problems.Combing the domestic and foreign literature,the author grasp the function of the image in senior physics teaching situation and discuss the advantages of its teaching in detail.Based on the Learning migration theory and Bruner’s structure-Discovery of Teaching Theory,combined with the literature research and teaching experience,this paper makes a detailed analysis of the main points,lines and faces contained in the function image,and summarizes the problems involved in the teaching of high and one physics first-order function image,quadratic function image,positive and inverse proportional function image and positive and cosine function images.It combined with the characteristics of the function image and gives the specific teaching principles:the principle of unified form,intuitive principle,two-way principle and consolidation principle.Combined the theory and practice,gives the specific process of the application function image teaching,and illustrates the related teaching cases.In sum,we generated four conclusion in the high physics teaching.Firstly,the firstorder function image had the highest frequency in aplication which is relates to the concept of teaching,experimental teaching and the rule of teaching,emphasize that we should grasp the order of "one axis,two lines,three slope,the four cut,five points,six areas”;The quadratic function image is involved in experimental teaching and the rule of teaching,as well as in some encounter problems;Positive and inverse proportional function image is rarely involved which was transformed to the primary function image in most cases,therefore,teacher should explain clearly the processing method of making the curve to the straight line;Positive and cosine function images are not involved basically,teachers can do simple introduction about them according to the actual situations.when analyze the specific issues by teachers and students.Finally,we suggetedthe advices as follows:the teacher should grasp the depth of the actual situation for different functions of the image;teachers and students shouldn enhance their awareness and pay attention to the meaning and value of the function image;teachers should pay attention to the process of image construction.