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数的运算在小学数学教学中占据着十分重要的地位,是小学数学内容的重要组成部分,是每个公民应具备的必需的数学素养。因此,培养学生准确、迅速、灵活的计算能力仍是小学数学教学的一项重要任务。一、分析原因(一)概念不清。任何数学规则都是建立在一系列数学概念之上的,概念不清会导致对数学理解不清,使计算出现错误。(二)口算不熟。口算是计算的基础,口算不熟会导致计算缓慢,所有口算中只要有一个错误,计算结果必然错误。
The number of operations occupies a very important position in the elementary mathematics teaching, is an important part of the elementary mathematics content, is the necessary mathematical literacy for every citizen. Therefore, training students’ accurate, rapid and flexible computing ability is still an important task in primary school mathematics teaching. First, analyze the reasons (A) the concept is not clear. Any mathematical rules are based on a series of mathematical concepts, the concept of ambiguity can lead to math understanding is not clear, make the calculation error. (B) miscalculation. Mouth calculation is the basis of calculation, miscalculation will result in slow calculation, as long as there is an error in all Mouth count, the calculation result is bound to be wrong.