适境　适时　适速　适度──小学数学概念教学的抽象概括平罗县向前小学张宗喜小学生形成数学概念，要经历一个“具体形象一典型表象一本质抽象”的复杂认识心理活动过程，即要经历把外部形象的感知材料经过头脑的思维加工，转化为内部心理的认识过程。这一“内化”的认知... Adapt to the environment at the right speed appropriate ─ ─ abstract summary of primary school mathematics concept teaching Ping Zhang County primary school primary school mathematics students to form mathematical concepts, to go through a “specific image of a typical image of an abstract nature of the complex cognitive process of mental activity that experience The external image of the perceived material through mental processing, into internal psychological awareness process. This ”internalization" of perception ...