| In recent years,the new mode of "Internet + education" has gradually infiltrated into the field of mathematics education,and has helped to re optimize and allocate the related resources to a certain extent."Compulsory education mathematics curriculum standard(2011 Edition)" points out that "focusing on the integration of information technology and curriculum content can effectively change the teaching method and improve the efficiency of classroom teaching." In this context,because of its strong pertinence,short and concise,convenient communication and other characteristics,mathematics micro course meets the needs of personalized and fragmented learning,and becomes a hot topic of the majority of education researchers.Review class is not only an important part of mathematics teaching process,but also a key step to implement "four foundations",cultivate "four abilities" and improve mathematics literacy.At present,the mathematics review class in junior middle school presents some problems that need to be discussed urgently,such as the lack of systematization of knowledge induction and the lack of gradientness of knowledge transfer,which leads to the low efficiency of classroom burden and the poor interest of students.In view of this,this study attempts to design and optimize the auxiliary teaching of mathematics review micro class in junior high school from the perspective of MPCK,taking the relevant chapters in the first volume of the eighth grade of mathematics in Beijing Normal University edition as an example,in order to explore the effectiveness of the application mode and strategy of mathematics micro class.This research is mainly from two aspects: theoretical research and practical research.In the aspect of theoretical research,first of all,it summarizes the current situation of the research and the teaching of the review course.Secondly,on the basis of deep reflection on the current situation of related research,this paper attempts to explore the design framework of review micro class from two perspectives of teaching design and technical design.Then,based on the connotation framework of mathematics teaching knowledge(MPCK),this paper analyzes the MPCK characteristics of review micro courses,and finally summarizes the optimization design strategies of review micro courses into four points: MK perspective-help improve the structure,PK perspective-optimize the organization presentation,CK perspective-encourage active behavior,TK perspective-present dynamic and intuitive.In the aspect of practical research,through the combination of classroom experiment and investigation research,first of all,by reference to the well-designed design framework and optimization strategy,the production of special review micro class is completed,and excellent works are selected as the experimental materials.Secondly,the micro class works are applied to teaching practice,supplemented by classroom observation,questionnaire survey and examination paper investigation,to test the impact of micro class optimized according to MPCK theory on students' learning achievements and emotional attitude.The results show that the micro class based on the MPCK structure classification optimization not only has a positive role in promoting students' knowledge understanding,problem solving and other outcome variables,but also has a certain improvement effect on students' thinking level,learning interest,learning style and other process variables.Most students agree with the micro class. |
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