小学数学用字母表示数教学中的问题与对策研究

The Problems and Countermeasures in the Teaching of "Using Letters toExpress Numbers"in Primary School Mathematics-Taking Suqian B Primary School as an ExampleAbstract "Number and Algebra"is an important learning field in primary schoolmathematics,"using letters to express numbers"is the basis for primary school studentsto leamn algebra knowledge.In this stage,the contact with using letters to expressnumbers"means the change and transition of students'mathematical thinking.This studymainly studies the current teaching situation of "using letters to express numbers"in Bprimary school of Sugian City,taking the fifth and sixth grade students and primary schoolmathematics teachers as the survey objects,using the methods of questionnaire,interview,etc.to investigate the current problems in the teaching of "using letters toexpress numbers"from the teaching reality.Through the analysis,the main problems are:1 the teachers have a vague understanding of the meaning of "using letters to expressnumbers";2 the teachers'awareness of algebraic thinking is weak;3 the situationcreation is insufficient,far away from the reality of life;the teachers neglect students'psychological and age characteristics;5the students lack of understanding ofmathematical symbols;6 the students have a weak awareness of application.Accordingto the research,four teaching strategies are put forward:1study the teaching content andgrasp the essence of Mathematics;2 actively create situations and connect with thereality of life;(3 teach step by step,pay attention to thinking transition;4 pay attention tothe understanding of mathematical concepts and improve the ability of mathematicalthinking.Through the research of this part,we can provide effective teaching strategies forthe teaching of "using letters to express numbers",so as to deepen students'understanding of using letters to express numbersKeywords primary school mathematics using letters to express numbers algebrathinking teaching strategy