Study On The Variable Type Teaching Of The Junior High School Geometry

The new curriculum encourages students to think independently, to explore and cooperate actively, to make the students understand and master the basic knowledge and skills of mathematics, to experience and use mathematical ideas and methods to obtain basic mathematical activity experience. However,variable type teaching is that teachers guide students from the shallow to the deep, step by step through knowledge of the occurrence and development process, the experience of mathematical knowledge, which contains the methods and ideas, so as to construct their own mathematical thinking process. Based on the concept of new curriculum standards, the paper will be the basis variant teaching and teaching junior high school geometry effective combination based on the theoretical study and research, and discussion of different teaching contents of different geometric variant form.In this paper, the literature analysis method on the junior high school geometry teaching research and the occurrence and development of variable teaching process were analyzed. This paper discusses the meaning of variants and variant teaching, classification, teaching principles and theoretical basis, finishing a variable geometry teaching and research teaching. Present stage junior middle school mathematics teaching present situation was studied in this paper by the method of questionnaire investigation, mathematics teachers, including the understanding of teaching, teachers of teaching application widely degrees, the effect of teaching, the status of teaching focuses on the investigation of the geometric variable.Through the questionnaire survey in junior high school geometry teaching mathematics teachers to change teaching the understanding and use of the situation, and strive to master the overall situation of variable teaching. The main conclusions of the study are as follows: mathematics teachers generally think that the change teaching should be targeted; In the current teaching of geometry, it is widely used in the teaching of variant teaching, especially in the use of "variant training"; it mainly manifested as multiple solutions of a problem and multiple use of one method. The psychological characteristics and cognitive characteristics of the students are not accurate when the design changes of some teachers, it mainly manifested as the difficulty of changing the type of problem and timing uncertainty etc. According to the variable teaching theory, the research of the teaching content and the analysis of the survey data, summed up the implementation of junior high school geometry change teaching method. Finally, the teaching methods and principles are applied to the case design of middle school geometry "triangle median line".