小学数学教材基本遵循螺旋式上升的方式编写,因此一些数学内容会在不同的年级重复出现。这样的好处显而易见,可以帮助学生的数学理解从感觉走向理性,从表层走向深刻。不过,由于知识在不同的年级呈点状分布,尽管逻辑体系可以将前后予以串联,可是由于没有相应的教材将这个静态的串联转变成动态的由浅入深地对比,这样,学生在学习过程中,常常将本是同一个知识,理解成不同的知识。为此, Elementary mathematics textbooks basically follow the spiral way of writing, so some of the mathematical content will be repeated in different grades. This benefit is obvious, can help students understand mathematics from feeling to rational, from the surface to the profound. However, since knowledge is distributed in a dotted manner at different grades, although the logical system can be linked in tandem, the static tandem can be transformed into a dynamic contrast between light and dark due to lack of corresponding teaching materials. In this way, , Often this is the same knowledge, understood as different knowledge. to this end,