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德国教育学家赫尔巴特说过:“所有比较确定的知识,都必须从计算开始。”计算教学贯穿于小学教学的整个阶段,是小学数学的基础,也是重要组成部分。新课标的十个关键词中就有运算能力。运算能力主要是指能够根据法则和运算律正确地进行运算的能力。培养运算能力有助于学生理解运算的算理,寻求合理简洁的运算途径解决问题。那么如何才能有效地提高学生的运算能力呢?一、重视算理教学,建构知识模型“算理”在数学的定义上,是指四则计算的理论依据,它是由
Herbart, a German educator, said: “All comparatively definite knowledge must begin with the calculation.” Computational teaching runs through the entire primary school curriculum and forms the foundation and primary part of primary school mathematics. The new curriculum ten keywords have computing power. Computational ability mainly refers to the ability to operate correctly according to the law and arithmetic law. The ability to cultivate computing power helps students understand the arithmetic of computing and seek a reasonable and concise way to solve the problem. So how to effectively improve the computing power of the students? First, pay attention to arithmetic teaching, the construction of knowledge model “arithmetic ” in the definition of mathematics, refers to the theoretical basis of the four calculations, which is by