Teaching Research On "Graphics And Geometry" Of Junior Middle School Mathematics Based On Network Drawing Board

With the advent of the Internet era,in order to actively promote the development of "Internet + education",information technology and courses are integrated and innovative.In order to adapt to the new trend of the development of educational informatization under the environment of the Internet and mobile Internet,on the basis of the super drawing board,academician Zhangjingzhong of the Chinese Academy of Sciences led the development of the first professional mobile Internet dynamic math software network drawing board in China,serving science teaching.Mathematics education researchers believe that network drawing board can improve mathematics teaching,but the current awareness of network drawing board is poor.In order to deeply integrate network drawing board with disciplines,this paper attempts to apply network drawing board to the teaching of junior middle school mathematics "graphics and geometry".This research adopts literature research method,questionnaire survey method,case analysis method and interview method,and conducts research on the basis of constructivist learning theory,recent development zone and variant teaching theory.First,a questionnaire survey was conducted on 189 students in four junior high schools in Guiyang and 15 math teachers were interviewed.Through the analysis of student learning and teacher teaching,combined with the survey results,it was concluded that there are some Problems: Teachers and students have poor awareness of problems and it is difficult to stimulate students' interest in learning;teaching methods are single and they cannot reasonably use modern information technology resources;they do not pay attention to students' dominant position in learning activities;students have poor foundations and teachers' teaching concepts are backward.Secondly,according to the existing problems,the teaching principles of the network drawing board in the junior middle school mathematics "graphics and geometry" are proposed: the principle of subjectivity;the principle of inspiration;the principle of purpose.The role of network sketchpad in junior middle school mathematics "graphics and geometry" teaching: dynamic demonstration of geometry to stimulate students 'interest in learning;carrying out inquiry learning to improve students' learning methods;designing mathematics experiments to promote students 'overall development;changing teaching methods to improve students' learning efficiency.Finally,through thinking about the case,the introduction of network drawing board for teaching,combining theory and practical teaching,providing three teaching cases as a reference,through practice,hoping to explore new ideas for teaching using network drawing board.In order to reflect the wide application of the network drawing board and the value of using the network drawing board,the advantages of using the network drawing board to solve the problem of "graphics and geometry" are exemplified,mainly including: interactive inquiry;intelligent reasoning;heuristic expansion.