1. Let children compare the number of objects in the two groups by overlapping correspondence, parallel correspondence and straight line correspondence.

2. Cultivate children's practical ability and comparative ability.

3. Initially cultivate the ability of observation, comparison and reaction.

4. Develop children's logical thinking ability.

5. Interested in participating in math activities.

Activity preparation:

Fruits, bowls and plates, colored buttons, operation boards, colored pens and pictures.

Activity flow:

1. The children drove into the classroom. Teacher: Every child has a chair. Are there any chairs left? By comparison, who has more children and chairs? Who is less?

2. The teacher introduces the new lesson in the form of stories. ! Said by: Qu Lao. Teacher! Teacher: The teacher brought a picture today. Do the children look beautiful? Who's in the picture? Shall we listen to the story in the picture? (Shi Qing tells this story again)

Teacher: Let's guess, children. Are there more carrots or white carrots? How can we know who is more and who is less? (Ask children to demonstrate and compare)

Summary: Comparing the number of two groups of objects, we can use overlapping correspondence and one-to-one parallel correspondence.

Teacher: Who has more red flowers and yellow flowers in the garden? What method is used to compare? (The teacher mainly introduces the comparison with connection.)

4. Grouping operation: First, assemble the fruits and compare who has more fruits and plates. The second group compares buttons of different colors. Who has more buttons and who has fewer buttons? The third group compares two kinds of animals by connecting lines. Who is more and who is less?

5. Summary: The number of two groups of objects can be compared by overlapping correspondence, one-to-one parallel correspondence and straight line correspondence. Is there any other quick and good way? For example, the teacher here has a bag of red flowers and a bag of green flowers. Who can tell who is more and who is less in the fastest and best way?