简便计算在数学教学中的功能,不应仅仅作为一种技能、一种运算定律或性质的简单应用,而应成为借助于对运算定律的理解和掌握来比较与优化的一种计算方法。它不仅能够提高学生的预算能力和解决问题的能力,还能增强学生的数感和数学意识。主要分析了当前小学四年级简便计算的现状,并提出了三个方面的教学策略,抛砖引玉。 The function of simple calculation in mathematics teaching should not be used simply as a skill, an operation law or a simple application of nature, but rather as a calculation method that is compared and optimized by means of comprehension and mastery of the law of operation. It can not only improve students ’ability to budget and solve problems, but also enhance students’ sense of number and mathematics. This paper mainly analyzes the current situation of the simple calculation of the fourth grade of primary school and puts forward three teaching strategies to start a discussion.