笔者时常想:小学阶段的数学知识有多少不是学生生活中天天在运用、在接触的呢?诸如“元角分”“时分秒”“四则计算”“简单的统计”“几何图形”,还有“工程问题”“等量关系”等等,从知识层面上讲,原本是很简单的。可是我们往往凭借着经验,人为地提炼了诸多的知识点,从中又产 I often think: how much of the mathematical knowledge in the elementary school is not used everyday in the daily life of students, such as the “Yuanjian Fen” “minutes and seconds” “four calculations” “simple statistics” “Geometry” “Engineering problems” “Equal relationship” and so on, from the knowledge level, the original is very simple. However, we often rely on experience, artificially refined a lot of knowledge, from which again