简便计算无论是以前的老教材,还是现在的新教材,都是一个不可或缺的教学内容,是小学数学教学的一个重要组成部分,是对学生进行思维训练的一种重要手段。然而,在教学中我们经常发现一些不和谐的现象。 Simple calculation Both old and new textbooks are indispensable teaching contents. They are an important part of primary school mathematics teaching and an important means to train students’ thinking. However, we often find some discordant phenomena in teaching.