1. Try to spell out a nine-grid pattern with different combinations of squares.

2. Learn to think from multiple angles, make multiple combinations and seek multiple answers.

3. Be able to record and spell out various combination methods on the record sheet.

Activity preparation:

1, the teaching wall chart (3) has 1 nine-square pattern, and there are several square puzzles with different colors and combinations, and there are different numbers on the board.

2. Operating materials for children's books on pages13 and 15. The number of nine-grid patterns and record tables is equal to the number of children.

Activity flow:

First, observe and compare various puzzles.

1. Teachers show various square puzzles and guide children to observe whether the squares on each puzzle are the same. What are the similarities? What is the difference?

2. The teacher shows the bottom plate of the Jiugong grid.

3. Ask individual children to prove that each square on a picture is the same size as each square on a jigsaw puzzle by overlapping figures.

4. Guide the children to discuss: Can you spell out a nine-square pattern with these square puzzles?

Second, children operate activities and try to spell out the pattern of nine squares.

1. Communicate your spelling with your partner.

Let a child spell out a nine-square pattern with a square puzzle in front of everyone.

2. Teachers guide children to think and discuss.

3. Ask all the children to try different combinations in the group operation activities and get multiple answers.

Third, try to record every spelling in your own way.

1, the teacher shows the record sheet to guide the children to discuss: how to record the nine-square pattern made of those boards.

2. Let the children record every spelling they think of on the record sheet after the operation.

Fourth, exchange and share their own jigsaw methods.

1. Show individual children's puzzles and record sheets for collective verification.

2. Let the children show all their spellings and corresponding record sheets on the table, and guide their peers to appreciate and learn from each other.