小学数学概念四环节教学谈张番瑜小学数学概念一般可以分为三种情况：一是定义型的概念，如约数、倍数、分数等。这些概念，教材中有确切的定义。二是描述型的概念，如直线、小数等。这些概念，教材中没有严格的定义，只用语言描述了其基本特征。三是感知型的概念，这种概... Four aspects of primary school mathematics teaching concept Talk about Zhang Pu-yu primary school mathematics concepts generally can be divided into three situations: First, the definition of the concept, such as divisor, multiples, scores and so on. These concepts, textbooks have an exact definition. Second, the concept of descriptive, such as straight lines, decimals and so on. These concepts, textbooks are not strictly defined, only language to describe its basic characteristics. Third, the perception of the concept, this kind of ...