| With the wide application of information technology in various academic fields,the integration of modern information technology and mathematics teaching has become a research topic of mathematics education at home and abroad.In the "Education Informatization 2.0 Action Plan" promulgated by my country in 2018,it is clearly proposed that education should adhere to integrated innovation,give full play to technological advantages,change traditional models,and promote the deep integration of new technologies and education and teaching.The deep integration of information technology with the research and practice of mathematics teaching has gradually become a hot topic in mathematics education research and practice.Under the background of the era of "double reduction",how to "reduce burden and increase efficiency" is an urgent problem to be solved in the teaching of primary and secondary schools.In the mathematics teaching of junior high school,it is difficult to investigate the dynamic geometric problems in "graphics and geometry".However,it is increasing.Therefore,it is of great theoretical and practical significance to study the teaching of dynamic mathematics technology and dynamic geometry.This research focuses on the strategy research of dynamic mathematics technology integrated with the teaching of dynamic geometric problem solving in junior high schools,comprehensively applies a variety of research methods,and conducts theoretical and practical research.At the theoretical research level,firstly,the research situation of dynamic mathematics technology assisting dynamic geometry problem solving teaching is reviewed through literature research,and two main research questions are put forward: one is to explore the fusion of dynamic mathematics technology based on Polya problem solving theory and TPMK theory.The strategy of dynamic geometry problem-solving in junior high school;second,through questionnaires and interviews,to explore the impact of dynamic mathematics technology and junior high school dynamic geometry problem-solving strategy on students' problem-solving ability,learning interest,emotional attitude and so on.Based on the application of Polya's problem-solving theory and TPMK theory,this paper discusses six teaching strategies that combine dynamic mathematics technology with dynamic geometric problem-solving teaching in junior high schools.(1)Dynamic and clear display,increasing efficiency and clarifying the meaning of the question;(2)Dynamic key information,helping reasonable guesses;(3)Dynamic demonstration and analysis,promoting in-depth understanding;(4)Strengthening hands-on operations and accumulating activity experience;(5))The dynamic highlights the variation and strengthens the ideological understanding;(6)Deepens the problem exploration and promotes the migration and innovation.In addition,specific examples are analyzed for each policy.In the practical research layer,the classic high school entrance examination mathematics "Dynamic Geometry Problem" is selected,and the teaching experiment method is the main method,combined with research methods such as questionnaire survey and front-line teacher interviews,to carry out the teaching design strategy of dynamic geometry problem solving for two classes in the ninth grade of a junior high school.A comparative experimental study of the effectiveness.Among them,the experimental class adopts the teaching of dynamic mathematics technology combined with the teaching strategies of dynamic geometric problem solving in junior high school,and the control class adopts the traditional teaching method.The research results show that the strategy of integrating dynamic mathematics technology with dynamic geometry problem-solving teaching can significantly improve students' performance in solving dynamic geometry problems,and their emotional attitudes towards mathematics learning.At the same time,front-line teachers also recognize the integration of dynamic mathematics technology into dynamic geometry teaching. |
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