小学数学“数与代数”中数学模型的建构

The Construction of Mathematical Model in Primary School Mathematics"Number and Algebra"

“数与代数”是小学阶段数学学习的重点与难点,亦是广大教师关注的焦点。在“数与代数”的教学中,教师应该从学生数学思维发展的逻辑起点出发,基于兴趣,帮助学生搭建建模支架;基于过程,构建数学模型;基于运用,让数学模型内化为数学能力,从而达成对“数与代数”的知识认知,发展数理逻辑能力。

"Number and Algebra"is the key and difficult point of primary school stage mathematics learning,and it is al‐so the focus of attention of teachers.In the teaching of"number and algebra",teachers should start from the logical starting point of students'mathematical thinking development,based on interest,help students build modeling support;based on pro‐cess,build mathematical model;based on application,internalize mathematical model into mathematical ability,so as to achieve the knowledge and cognition of"number and algebra"and develop the ability of mathematical logic.