1. Compare the number of elements between two sets with less than four in one-to-one correspondence.

2. Be able to perceive the elements in the collection one by one.

3. Guide children to be interested in numbers.

4. Develop children's observation and spatial imagination.

Key points and difficulties:

You can use corresponding methods to compare the number of objects.

Activity preparation:

A number of corresponding pictures, "how much" operation data, one for each person; "Equal amount judgment" operation card, etc.

Activity flow:

First, experience preparation.

Game: Take a chair.

Let the children play the game of grabbing chairs in groups. There is a difference between the number of children and the number of chairs within 4. Question: How many chairs did a child sit in when playing the game of grabbing chairs just now? Are there any more chairs or children? Why? Is there any way to make you the same?

Second, collective exploration.

1. Show me the teaching aid: Count, how many flowers are there in the garden? (4 flowers), here comes the butterfly. Ask the children to help the butterfly find a friend. A butterfly can find a flower as a friend. (Children operate alone) Are there more butterflies or flowers? how do you know Let's put a flower to mark the excess. Is there any way to make butterflies as many as flowers?

There are ducklings and small fish here. Who will feed the ducklings in eat small fish? (Children's personal operation)

By comparison, are there more ducklings or more small fish? Where did you put the floret?

Third, grouping operations.

1. Introduce the operating materials and methods.

Let's play the game "how much" first. The children align the two cards in the small basket, compare which one is more, and mark it with small flowers.

After playing, raise your hand for the teacher to check, put the cards back in the basket, and then play the game "which two rows are as many" on the back table.

2, children's group operation, teacher tour guidance.