小学低年级儿童正处在以具体形象思维为主，逐步向抽象逻辑思维过渡的阶段。他们对具体、直观的事物容易认识，而对抽象、概括的事物理解起来就比较困难。特别是抽象性很强的数学知识，理解起来困难更大。因此低年级数学教学必须十分重视采用直观手段，运用教具、挂图、插图、 Primary school children in the lower grades are in a concrete image-based thinking, gradual transition to abstract logical thinking stage. They are easy to understand specific and intuitive things, but difficult to understand the abstract, summarized things. In particular, abstract mathematical knowledge, more difficult to understand. Therefore, junior mathematics teaching must attach great importance to the use of visual means, the use of aids, wall charts, illustrations,