The studies of development level of mathematics concept were necessary in studying the reformation of rnmathematics curricula for primary and junior high school. The essence of concept was a system, the comprehension to a rnconcept was to put up the new concept＇s system and find out the relative of different concepts. And this might be scientific rncourse of a student to catch a concept. The results had important revelation foe the mathematics curricula reformation.%中小学数学课程的改革需要研究学生数学概念的发展水平.概念本质上是一个系统，理解概念就意味着去建立一个系统确定相关概念之间的依存关系，这是学生概念科学化的过程.进行数学课程改革，要认真研究学生数学概念发展的最近发展区，并以此作为课程改革出发点，数学教学必须要以学生的发展为基础.
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