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简便运算和速算(以下统称为简便算法)是发展学生思维、提高计算能力的一种基本训练。下面就简便运算教学中如何发展学生的思维能力,谈几点做法和体会。1、讲清道理,培养逻辑思维加法、乘法的交换律、结合律,以及乘法对加法的分配律,减法的运算性质等,都是简便运算的理论依据。学生只有对它们有一个正确的认识,并熟练地掌握,才能根据算式和数据的特点作出合乎逻辑的判断推理。因此,在简便运算的教学中讲清算理,讲清运算的定律、性质是关键。
Simple calculations and quick calculations (hereinafter collectively referred to as simple algorithms) are basic trainings for developing students' thinking and improving their computing power. The following is a simple operation of teaching how to develop students' thinking ability, talk about how and experience. 1, to clarify the reasoning, training logical thinking addition, multiplication of the exchange law, combining law, and multiplication of the law of addition of addition, subtraction of the nature of the operation, are simple theoretical basis for the operation. Only if students have a correct understanding of them and master them in order to make logical judgments reasoning based on the characteristics of formulas and data. Therefore, it is the key to clarify the arithmetic in the teaching of simple operation and clarify the law of the operation.