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How to Divide Shapes into Two Groups in Grade One Mathematics
1, according to the shape of the graph, it can be divided into three-dimensional graph and plane graph, and can also be divided into circle, triangle and square.

2, according to the color, in the classification of graphics, graphics are painted by color, can be divided into different colors, there are several colors are divided into several categories, blue painting is a class, not painting is a class.