一、问题的提出计算教学是小学数学的重要组成部分,儿童认识数学是从认数和计算开始的,它是学习数学的最基本能力。儿童在生活中处处离不开计算,在学习其他数学知识及学习其他学科知识时,也常常用到计算。因此,具备一定的计算能力是非常必要的。但是,在计算过程中常常会出现这样那样的错误与差异。 First, the problem raised Calculation teaching is an important part of primary school mathematics, children recognize mathematics is recognized and calculated from the beginning, it is the most basic ability to learn mathematics. Children can not do without calculation in their lives. Calculations are often used when learning other maths and learning about other disciplines. Therefore, with a certain amount of computing power is very necessary. However, such errors and differences often occur in the calculation process.