Mathematics teaching plan for middle class in kindergarten "Comparison of Thickness" 1 1. Activity objectives:
1. Learn to compare the thickness of objects and correctly express the comparison results.
2. Can sort objects from fine to coarse, and know that the thickness is relative.
3. Cultivate children's ability to recognize numbers.
4. Let children understand simple mathematics.
Second, the activity preparation
Material preparation: Wangzai cowboy cans, straws, building blocks, sausages, markers, candles, etc. Having different thicknesses; Courseware ppt；; Children's operation data.
Third, the activity process:
1. Explore the thickness found.
(1) Play to find the thickness.
Teacher: Today, Teacher Lin brought you something. What do you have? Later, please have a look, touch and talk to the children next to you. What's the difference between them?
Children are free to choose materials, and teachers tour to guide them.
(2) Discuss and guide children to communicate and share.
Teacher: Now, who wants to tell me what's the difference between them when you play? How did you find out?
(3) summary.
The teacher concluded: Oh, as you all know, some of these things are thick and some are thin. To know whether it is thick or thin, you can not only look at it with your eyes, but also insert, stack and compare it. You are all great! So what is thick and what is thin? Let's compete together.
2. Compare and judge the thickness.
(1) Comparing the thickness of objects, we know that the thickness is relative.
① Teachers first show red and green building blocks with different thicknesses for comparison.
Teacher: Let's look at this red building block first. Do you think it is thick or thin? Let's ask the green building block for help and compare with it.
② Continue to show the blue building blocks and compare them with the green building blocks to understand the relativity of thickness.
Teacher: Hey, why is the red building block thicker than the green building block just now, but now it is thinner than the blue building block? Who knows why? You can discuss it with the children next to you
(2) Compare the thicknesses of three objects to find out the thickest and thinnest.
Teacher: Now, let's compare these three building blocks. Which do you think is the thickest and thinnest?
(3) summary.
Conclusion: By comparison, we know three secrets of thickness. First, there must be at least two things to be coarse and fine, and there is only one thing that cannot be compared; Second, comparing objects with different thicknesses, the results are different, and thickness and thinness are relative; Three or more objects are thicker, and the thickest and thinnest objects can be compared.
3. Sort by thickness difference.
The teacher showed ppt courseware.
(1) Guide children to know the order of the marker map from fine to coarse.
Teacher: Children, when you see this, the teacher has brought you a picture. Please think about what this means.
(2) Children can freely choose objects and line up in the order from fine to coarse.
Children are free to operate and teachers guide them.
Teacher: Please take four kinds of materials and arrange them in order from fine to coarse, or you can do them together. Now please walk gently to the edge of the material and line up.
Ask questions individually.
Teacher: Can you tell me how you arranged it? What do you do first?
(3) Teachers and children * * * line up with the summary from fine to coarse.
The teacher said, operate ppt courseware.
Summary: The first method is to find the thinnest one of the four cylinders and put it on the far left, then find the thickest one on the far right, and then compare the remaining two and arrange them in order. The second method is to find the thinnest one first; Then find the thinnest one and rank second; This method can only be used in turn.
4. Group operation activities.
Teacher: "I have prepared four kinds of materials for you. Let's take a look. "
(1) The teacher introduced the operation data.
Material 1: Find the best products in each group of pictures and tick "√" in the box below.
Material 2: Find the coarsest and thinnest objects in each group of pictures, and draw the circles below them in red and green respectively.
Material 3: provide three kinds of straws with different thicknesses, and arrange them from fine to coarse.
Material 4: Provide plasticine for children and rub out three "noodles" with different thicknesses, which are sorted from fine to coarse.
(2) Children's operation and teachers' itinerant guidance.
Teacher: Now, please raise your little chairs and sit gently next to your favorite materials. Let's compare and line up.
Teachers patrol and guide, focusing on guiding children to sort the thickness.
Focus on guiding children to sort the thickness.
Children can finish their activities freely.
Teacher: Older children can go for a drink and go to the toilet. Goodbye, children!
Activity reflection:
The disadvantage of this activity is that it was not arranged during the introduction. I choose to use the Monkey King's golden hoop to attract children's interest, but this is a little too close to my goal of being crude and refined. The children basically talked happily around the topic of the Monkey King's golden hoop. When I introduced the coarse and fine topics, the children talked about the Monkey King's golden hoop in high spirits, which made me a little anxious. I think we should choose a simple and direct introduction when we start this introduction.
(1) You can use small animals to live in new homes. The big ones live in big houses and the small ones live in small houses, because big houses are thick and small houses are thin.
(2) Or directly show two objects with different thicknesses for children to observe, so that children can understand the difference of thickness through intuitive visual inspection.
(3) You can also stack several paper barrels together to compare the thickness of objects.
I feel that I haven't done enough in the change of activities. I can accept change, whether it is thick or thin. I used to go bold and thin, which seemed a little too simple and not interesting enough.
There are not enough teaching AIDS in the activity. I want to make a set of thick and thin paper buckets for children to observe and explore for themselves.
This activity gave me a warning. In future activities, I will think deeply, think deeply, and constantly reflect on the mistakes in the activities to avoid making mistakes again.
Activity Goal of "Comparative Thickness" 2 in Mathematics Teaching Plan for Kindergarten Middle School Class
1. Let the children feel the thickness of the object through operation comparison, and experience the comparison of thickness to make it relative.
2. Cultivate children's ability to sort quickly and improve their agility in thinking.
3. Develop the flexibility of children's hand movements.
4. I like to participate in games and experiences.
Activities to be prepared
1, 3 sticks with different thickness and color.
Everyone has a bucket of plasticine.
Activity process
First, compare the thickness.
Show me two sticks and compare them. That one is thick and that one is thin. Show another stick, compare it with the two sticks just now, and guide the children to tell who is the thickest and who is the thinnest.
Second, experience the relativity of thickness.
1, the teacher took out a stick and asked: Is this stick thick or thin?
2. Guide children to discuss and come to the conclusion that the thickness can only be judged by comparison, and the thickness is relative.
Let each child stand up and classify the three sticks according to their thickness.
Guide children to sort sticks from coarse to fine or from fine to coarse.
Third, rub the stick.
Let the children take out plasticine and rub two sticks. After wiping, compare whether the two sticks are the same thick, which is thick and which is thin, and compare one with the children next to you to see who is thick and who is thin.
Fourth, the operation exercise: thickness sorting.
1, let the children rub out many sticks with different thicknesses, then sort them and tell the children next to them how they are arranged.
2. Let the children know the two methods of sorting by operation.
3. Summary: There are two ways to sort the thickness, from coarse to fine or from fine to coarse.