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数学计算是小学数学教学的主要内容,是学生后续学习和生活的必备技能。将计算视作一种技能去掌握比看作一种知识去理解,似乎更容易为学生接受。事实也是如此,成年人都能娴熟地计算,但要求他们正确地说出计算法则与算理,对他们来说却是一件难事。即使能说出来,也常常是片言片语,可这并不影响他们对计算的掌握与运用。计算有法,毋庸置疑,这儿的“法”兼有方法与法则的意思。法则是理性
Mathematical calculation is the main content of primary mathematics teaching, students’ follow-up study and life skills. Seeing computing as a skill to grasp more than understanding as a kind of knowledge seems to be easier for students to accept. The same is true of adults, and adults are skilled in their calculations, but asking them to correctly formulate the laws of computation and arithmetic is a difficult task for them. Even if they can be said, they are often phrases, but this does not affect their mastery and application of the calculation. There is no doubt that there is a law of calculation. Here, “law” has the meanings of both methods and laws. The law is rational