Study On The Teaching Strategies Of "Computational Principle" In Mathematics At The Midst Of Primary School

As the truth behind the calculation process,computational principle is an important part of computing teaching.At the same time,understanding of computational principle is also an important goal to be achieved in primary school computing teaching.Effective "computational principle" teaching can not only enable students to master calculation methods on the basis of understanding,improve calculation skills,but also cultivate students 'reasoning and abstract summary in the process of exploring computational principle and understanding computational principle,and promote students' logical thinking The development of abilities,thereby cultivating students' computing literacy.With the deepening of the new curriculum reform,more and more experts and teachers began to attach importance to the teaching of "computational principle",aiming to enable students to experience the process of exploring arithmetic--clear arithmetic--understanding arithmetic--summarizing algorithms.Although teachers can realize the importance of arithmetic in actual teaching,it is worth discussing how to carry out "computational principle" teaching in order to make the effect better.In view of this,on the basis of analyzing the importance of "computational principle" teaching,this study attempts to observe and understand the mathematics teachers in the primary school by interviewing excellent classroom teaching at the midst in primary school,and interviewing math teachers in the primary school to understand and explore their actual teaching strategy and confusions in the first-line "computational principle" teaching.Based on the guidance of learning dual mechanism theory,Piaget's cognitive development theory and mathematical multiple representation theory,suggestions are made from the aspects of teachers' educational concepts,teaching objectives,teaching content,teaching methods and evaluation methods,in order to beable to provide some reference for mathematics "computational principle" teaching for elementary school mathematics teachers.This research mainly adopts literature research method,classroom observation method,interview method and case analysis method.On the basis of clarifying the connotation of arithmetic and "computational principle" teaching,it analyzes the presentation of computational principle in the middle school mathematics textbook of the People's Education Press and the significance of implementing "computational principle" teaching.At the same time,on the basis of referring to the excellent research results at home and abroad,this paper made observation and case analysis of several calculation classes in the middle grade of primary school,and conducted in-depth interviews with a number of mathematics teachers in the middle grade of primary school,focusing on understanding the teaching situation of "computational principle" in the middle grade of primary school.The following conclusions are drawn:First of all,in the mathematics teaching materials in the middle of primary school in people's education edition,calculation theory is usually presented in the form of situational theme diagrams,mathematical tools,problem orientation and problem solving assistance.Secondly,based on classroom observation and interviews with front-line teachers,this paper summarizes the achievements and problems in the teaching of "computational principle" in the middle of primary school,and analyzes the causes of the problems.Finally,this study puts forward the strategies of "calculation and science" teaching in the middle of primary school: Change the traditional educational concept and correctly understand the teaching of "computational principle";Starting from the core competence,the multi-level teaching objectives of "calculation and science" are formulated;Take mathematics as the main line,proceed systematically,and deeply analyze the teaching content of "computational principle";Select the appropriate teaching method to improve the teaching efficiency of "computational principle";Optimizing teaching evaluation and promoting "learning" by "evaluation".It is hoped that these strategies can improve teachers' awareness and ability of teaching "computational principle",provide valuable reference and reference for primary school mathematics teachers,and enable students to form calculation skills and improve their operational literacy and ability of abstract logical thinking in the process of "computational principle" teaching.