Through this activity, I asked the children to classify different milk boxes, guided them to classify according to the variety of milk, and then showed the corresponding cards, so that the children could match them in the order of quantity. During the operation, the children put the milk boxes quickly, distributed them well, and distributed the cards in a good order, but the children were a little hesitant when they saw the boxes and cards, but on the whole, they mastered them well and achieved the preset activities.