Educational goal

1, guide children to explore the decomposition structure of learning 5, and know that 5 can be divided into 1 and 4,2 and 3,3 and 2,4 and 1.

2. Help children understand the meaning of separation and integration, know how to express it in words, and stimulate children's interest in separation and integration.

Prepare five apple cards with different colors on the front and back, and give children books and pens.

teaching process

1. Review the decomposition and combination of numbers 2, 3 and 4.

Second, learn the decomposition method of the number 5.