Design And Research On The Content Of "Graphics And Geometry" In Junior Middle School

This study is based on the repeated teaching knowledge points of "graphics and geometry" in junior middle school and primary school,and is based on the primary school mathematics textbooks published by Jiangsu Education Press and the junior middle school mathematics textbooks published by Jiangsu Science and Technology Press.The purpose is to study the teaching of these contents,so as to maximize the teaching effect for junior middle school students in the learning of corresponding knowledge and the teaching of junior middle school front-line teachers,provide better teaching strategies and suggestions for front-line mathematics teachers,and also provide materials and references for the compilation and arrangement of geometry in Jiangsu education edition textbooks.Collect literature through inquiry and sort out the requirements of each knowledge point in the "graphics and geometry" part of the mathematics curriculum standard for compulsory education(2011 Edition);By querying the mathematics textbooks of Jiangsu Education Edition in primary and junior middle schools,this paper combs out the connection between the knowledge points of geometry and the class arrangement of knowledge points in each learning period,and sorts out the knowledge points and their distribution that may have repeated teaching in junior middle schools and primary schools.In order to explore the junior middle school mathematics classroom teaching of geometric repeated knowledge points,this paper divides the overall geometric part of primary school and junior middle school into three categories,namely,the understanding and nature of graphics,the movement and change of graphics,and the nature and coordinates of graphics.A typical representative knowledge point is selected from each type of repeated knowledge points to carry out the research.On the basis of combing the repeated knowledge points of geometry in primary and junior middle schools and the classroom teaching research corresponding to typical knowledge points,combined with the teaching case fragments of one of the three themes,the research is carried out from three aspects:teaching objectives,teaching methods and teaching evaluation.Finally,the following suggestions are put forward:The suggestions on the arrangement of geometry in the textbook of Jiangsu Education Edition are as follows:(1)to understand the students’ thinking level in geometry,to reduce the difficulty and abstract level in primary school according to the students’ development level,and to promote junior middle school accordingly;(2)to understand the logical relation and the whole structure of the knowledge points which are required to repeat in the teaching of primary and junior middle school,to increase the leading teaching of cohesion,and to construct the whole knowledge frame of students;(3)get feedback from front-line teachers on the two stages.Teachers in teaching geometry-related knowledge recommendations are as follows:(1)the study of teaching materials to be more thorough,not only to study the content of this section,but also need to understand other sections,(2)to strengthen the communication among teachers in different periods;(3)to fully understand the students’learning situation before teaching and to understand the actual mastery of the students in the teaching class.