我们都很清楚这样一个事实:任何知识技能的掌握都必须遵循由难到易、由简到繁的过程。小学生学习抽象的数学知识更是如此,有时从我们成人的角度看起来简单的知识,学生学起来并不轻松,这并不是说明学生掌握新知识 We are all well aware of the fact that any knowledge and skills must be mastered from difficult to complex and from simple to complex. This is even more so for pupils who learn abstract math, and sometimes it is not easy for students to learn simply from the perspective of our adult people. This does not mean that students acquire new knowledge