Micro-Class Development And Application Research Of "Graphics And Geometry”in Elementary School

“Graphics and geometric” part is a very important part in mathematical system.However,its content is abstract,formal,diversiform and similar.At the same time,students have poor space conception and imagination ability of it.All these above become barriers to study.The author attempts to introduce the micro-class,in order to assist teaching for teachers,promote learning for students,and summarizes its design strategy in practice,development process and application mode.Through the analysis of micro-class related research status at home and abroad,the author found that the current stage stayed in the aspect of theory,and lacked of specific empirical research.The author detailed combing knowledge in the field of elementary school mathematics “graphics and geometric” content,and analyzed the overall course objectives,summarized the problems existing in the current teaching and learning combining with the core ideas.The author analyzed the application value in introducing the micro-class into“graphics and geometry”,and understood the micro-class current using situation and existing issues through student questionnaire and teacher interview,then put forward the design strategy to solve the problem starting from the basic theory of the micro-class,including:development strategy of story scene,development strategy of study partner conversation,development strategy of timely Q&A interactive,development strategy of knowledge structure introduction,and micro-class design and development process building.Last but not least,by taking the typical difficulties in elementary school “graphics and geometric” course as an example,the author developed and researched the micro-class for pre-class,in-class and post-class,summarized the application mode and the transformation of teacher’s role.These all provided typical cases and advanced experiences for "graphics and geometry” micro-class follow-up study,and promoted quality education resources building and sharing.