Its characteristics are pertinence, interest, inspiration and conciseness. Clever use of teaching AIDS can stimulate children's interest in learning. For example: Chinese word combination practice. The traditional teaching method is to give a Chinese character, let the children form words, and then read the word card many times. For young children, this kind of practice will be very boring after two or three times, and they will have no patience to continue learning. Playing with teaching AIDS and matching eggs can stimulate children's interest and actively combine words.