The content of this math activity "classification according to a certain feature" is relatively open and suitable for children of different development levels. Children are free to choose their own things when sharing bowls, toys and fruits. The color and size of the selected fruit can also be freely decided. This also reflects the different development levels of children in activities from one side.

It may be difficult for children to classify objects according to their characteristics (size, color, shape, etc.). ) and insert the corresponding tag card. How to find out their similarities and differences quickly and correctly and classify them is a question of thinking method. The teacher guides the children to observe and sort out all kinds of toys, find out their similarities and differences, and let the children share and communicate. "How do you divide them? What mark did you use? " Guide children to use "everything" and "put something together" This will prevent children from throwing toys around. This is also an important aspect of cultivating the ability to solve problems by using existing experience.