1, through different methods, distinguish the thickness of 2-5 objects and sort them.

2. Cultivate children's ability to observe and compare.

3. Experience happiness through classification, cooperation and comparison.

Prepare:

Wooden boards, books, scarves, paper, socks, towels, biscuits, shoe boxes, drinks, building blocks and baskets.

Process:

(1) Visual inspection

1, Teacher: What kind of coats do the children wear in winter (thicker than what you are wearing now)? What about what you are wearing now (thinner)?

2. Show me the blackboard

Teacher: I have a board here. Do you think it is thick or thin?

Teacher: Then I'll take out a piece now. Is this board thick or thin now?

Summary: It turns out that one thing can't be compared, and it takes two or more things to compare the thickness.

Teacher: How do you know this board is thick (with your eyes)?

Teacher: Your little eyes are really bright. The thickness can be seen at a glance.

Show me this book.

Teacher: Then please tell me who is thicker or thinner in these two books.

Teacher: Please point it out. How did you know?

4. Show me the shoe box

Teacher: Hey, how about these two boxes? Please come up and show them. How could you do that?

Conclusion: We can compare the thickness of things through our own eyes.

2. Touch

1, the teacher shows the scarf.

Teacher: It's getting cold. What kind of scarf should I wear? Please think about it. Which one should I wear?

Teacher: Do you all think this is thick?

Teacher: Then how do you know?

Teacher: By the way, you can also compare them by touching them.

2. The teacher asked the children to touch and distinguish.

Teacher: Teacher Jin asked the children to touch it to see which is thicker and which is thinner.

Conclusion: We can directly touch it with our own hands to compare the thickness of objects.

3. Put two things with different thickness under each chair.

Teacher: The teacher put a basket under each of your children's chairs. Please compare the things in the basket. Put a purple time sticker on the thickest place. The pasted child will send the basket here, remember where to put it.

Teachers check 2-3 items.

Summary: Our children are great. They can compare the thickness of objects by touching them.