| Limit thought is a kind of mathematical thinking that applies limit concept to analyze and study problems.In mathematics teaching,the appropriate idea of penetration limit can stimulate students' interest in learning,help students to understand the nature of the problem,and develop students' thinking.However,in the current teaching of limit thought,the penetration of limit thought is not enough,the students are still very strange to the limit thought.Therefore,how the front-line teachers can better permeate the limit thought in the actual teaching process is a subject worthy of the educators' high attention.Based on the combination of literature analysis and teaching practice,this paper studies the strategy of permeating limit thought in primary school mathematics teaching.Firstly,this paper analyzes the background and significance of the penetration strategy of the penetration limit thought in the research and teaching,and defines the concepts of mathematical thought,finite and infinite thought,limit and limit thought.Secondly,by using the method of literature analysis and interview,this paper analyzes and demonstrates why the idea of penetration limit should be used in primary school mathematics teaching,and summarizes three reasons.1.The current situation of infiltration in teaching is not good.The idea of infiltration limit is the need to improve the effectiveness of teaching.2.The infiltration of limit thought is the need to realize the educational value of limit thought in practical teaching.3.The idea of penetration limit is needed to improve the teaching efficiency of relevant knowledge in textbooks.Then,based on the above analysis,the author puts forward the principle,approach and strategy of permeating limit thought in primary school mathematics teaching.The principles are: the principle of moderation,the principle of student participation,the principle of gradual progress,the principle of repeated permeability,intuitionistic principle.The way has:in the teaching material study,the deep dig limit thought;In the process of knowledge penetration limit thought;In summing up reflection in sublimation limit thought;apply limit thinking to problem solving.The strategies are as follows: to improve the teachers' active consciousness and subject knowledge of penetrating limit thoughts,to make students comprehend mathematical thoughts in the exploratory activities,and to cultivate students' interest in learning limit thoughts.Finally,combining with my own teaching experience,this paper gives a teaching case of the infiltration limit thought,and summarizes the general steps of the infiltration limit thought in the process of primary school mathematics teaching. |