Research On Optimization Strategy And Application Of Primary School Mathematics Problem Solving-Micro-Lecture

The rapid development of information technology has promoted educational reform,and educational informatization has become the main development trend.The mathematics curriculum standards for compulsory education(2011 edition)requires "using modern information technology as a powerful tool for students to learn mathematics and solve problems,and effectively improving the way of teaching and learning".As the product of the deep integration of information technology into the mathematics curriculum,the new model of mathematical micro-course can not only serve as an effective auxiliary means of traditional teaching,but also meet the needs of students' autonomous mobile learning.Now it has set off a trend in the country,and many schools actively promote the construction and application of micro-course.Problem solving ability is not only one of the main abilities of various examinations,but also an important embodiment of students' comprehensive qualities such as analysis,comprehension and logical reasoning.Primary school mathematics is the initial stage to train students' solving problems and thinking ability.This study attempts to integrate Polya's thought of solving problems into the design of primary school mathematical micro-course,so as to combine the flexible micro-course teaching with the traditional mathematical problem solving,and achieve the dual purpose of breaking through the difficulties in solving problems and improving students' interest.This research mainly carries on from the theory research and the practice research two aspects.In theoretical research,this paper firstly summarizes the status of the research on micro-course mathematics in primary schools and problem solving thought of Polya.Secondly,based on the understanding of Polya problem solving table,this paper analyzed the characteristics of the problem solving micro course,and discussed the design strategy and optimization method from the two directions of teaching design and technical design.Then,according to the four links in the problem solving table of Polya,extracted the prompt words suitable for primary school mathematics micro-course from it,and summarized the questioning strategies in problem solving micro-course teaching.In practical research,through classroom experiments,applies the optimization strategy of solving mathematical problems in elementary school micro-course based on Polya's thought,using classroom observation,questionnaire survey,examination papers and other research methods,checking the problem solving ability of students,learning and using micro-course to study of the influence of willingness,attitude,emotion,and to investigate the design details preferences.Research shows that:(1)Students' problem-solving ability and academic performance have been significantly improved after learning the optimized version of micro course;(2)Students' learning willingness and emotional attitude to use micro course are significantly improved after learning the optimized version of micro course;(3)Compared with print,most students prefer to use handwritten solution steps in micro class.