无论是数学概念的形成、数学结论的获得还是数学问题的解决,都依赖于计算活动的参与。以往计算数学的目标基本定位在使学生能熟练正确地计算上,因此计算教学设计主要侧重强化训练,以求熟能生巧,但徒增学生的练习负担,极易引发厌学情绪。新课标对“数的运算”的要求是:在数学课程中,应当注重发展学生的运算能力。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,并能寻 Whether it is the formation of mathematical concepts, the acquisition of mathematical findings or the solution of mathematical problems, all depend on the participation of computational activities. In the past, the goal of mathematics was basically to enable students to be proficient and correct in their calculations. Therefore, the calculation of instructional design mainly focused on intensive training in order to make it workable. However, it was extremely easy for students to exercise their motivation to wear off-school emotions. The new curriculum on the “number of operations ” requirement is: in mathematics courses, should pay attention to the development of students’ computing power. Computational ability mainly refers to the ability to operate correctly according to the law and arithmetic law. Training computing power helps students understand the calculation of computing, and can find