| In recent years,the new model of "Internet+Education" has gradually penetrated into the field of mathematics education,and has become a hot topic in mathematics education research,and educational informationization has become the main development trend.China's Compulsory Education Mathematics Curriculum Standard(2011 Edition)also emphasizes "taking modern information technology as a powerful tool for students to learn mathematics and solve problems,effectively improving the way of teaching and learning,and making students willing and likely to participate in practical and exploratory mathematics activities".It can be seen that the integration of information technology and mathematics activities is gradually becoming the focus of the new round of curriculum reform.At present,the integration of information technology and mathematics activity teaching is quite common,but the research shows that the design of mathematics activity still lacks relevant theoretical guidance,and there are some problems such as outdated design concept,improper content presentation and unreasonable learning methods,which lead to inefficient classroom burden and poor students' interest.How to optimize mathematics activity teaching has become an urgent problem to be studied and solved.In view of this,under the guidance of the concept of Compulsory Education Mathematics Curriculum Standard(2011 Edition),this study attempts to put forward the teaching strategy of applying dynamic mathematics technology to optimize the mathematical activities of plane geometry,with a view to improving the effectiveness of geometry teaching.This study mainly discusses in detail from two dimensions: theoretical research and practical research:In the aspect of theoretical research,through the combination of theoretical speculation and experience summary,first of all,referring to relevant literature,this paper briefly summarizes the dynamic mathematics technology,mathematical activities and plane geometry in junior high school,combs the research status of dynamic mathematics technology,mathematical activities and plane geometry in teaching,and puts forward some thoughts.Secondly,guided by the idea of Compulsory Education Mathematics Curriculum Standard(2011 Edition),this paper puts forward the teaching strategy of optimizing plane geometry mathematics activities with dynamic mathematics technology: focusing on details and promoting observation and thinking;Highlight the key and develop geometric intuition;Strengthen the operation,help guess verification,etc.,and further explain and analyze the strategy and provide corresponding cases.Finally,taking the fourth chapter "Similarity of Figures" in the first volume of Grade 9 of Beijing Normal University Edition as an example,the above teaching strategies are used to optimize the teaching design of similar triangles' s series of mathematics activities.In the aspect of practical research,the teaching practice is carried out by adopting the mathematics activity teaching design optimized by strategy,with teaching experiment research as the main part and lesson case study as the auxiliary part.Through quantitative and qualitative analysis,such as questionnaire survey,case interview and classroom observation,this paper tests whether the mathematics activity teaching optimized under this teaching strategy can effectively improve students' learning effect,have a positive impact on students' learning process and play an auxiliary role in promoting traditional plane geometry teaching.The research shows that optimizing the teaching strategy of mathematical activities with dynamic mathematics technology has a positive impact on promoting students' learning of plane geometry.Compared with the control class,the learning effect and learning process variables such as knowledge understanding,problem solving,cognitive belief and emotional attitude of the students in the experimental class are better than those in the control class.In addition,it also plays an auxiliary role in promoting the traditional plane geometry teaching. |
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