The first part: the composition and decomposition of mathematics teaching plans for large classes in kindergartens: 2.
Activity goal: 1, learn the decomposition and combination of 2, know the symbols of "∧" and "∨", understand the relationship between partial numbers and integers, and discover various decomposition methods of numbers.
2. Stimulate children's interest in learning the composition of numbers.
Key analysis:
Learn the decomposition and combination of 2 and understand the significance of decomposition composition.
Difficult point analysis:
Understand the relationship between partial numbers and integers and find the decomposition methods of many numbers.
Activity preparation:
Two apples, two fruit bowls, snowflakes, small sticks, small building blocks and other small operating materials.
Activity flow:
Explain the demonstration and learn the decomposition and combination of 2.
1. explanation and demonstration: divide two apples into two fruit bowls. Question: How many can it be divided into? Then put the apples in two fruit bowls together and ask: What is the sum of 1 and 1? Use numbers to express the formula, and explain the formula: 2- integer, ∧-decomposition number, ∨-composition number, 1 1- partial number. The teacher wrote down the formula of on-off and on-off on the blackboard:
2 1 1
∧ ∨
1 1 2
Reading: 2 can be divided into 1 and 1, 1 and 1 to add up to 2.
2. My own experience: Children freely combine into a group of two, and practice on and off according to the teacher's password. For example, the teacher said: 2 can be divided into 1 and 1, and the two quickly separated. The teacher said: 1 and 1 add up to 2, and the two quickly stood hand in hand.
3. Let children try freely: make full use of building blocks, operate snowflakes, small sticks and so on. When writing exercises are carried out, teachers will tour to guide them and encourage them to discover the composition of numbers.
4. Consolidate the song with "clap your hands".
Clap your hands at the teacher: let me ask you, little friend, how many copies can you divide?
Child: A teacher, I tell you, 2 can be divided into 1 and 1.
Chapter 2: Composition of 4: Mathematics Teaching Plan for Kindergarten Large Class.
Activity goal: 1. Induce, summarize and learn in game activities.
2, constantly explore the various points in the operation activities, and learn to record.
3. Know how to exchange the positions of two partial numbers, and the total number remains the same. Knowing that an integer is decomposed into two parts, one side increases and the other side decreases the complementary relationship.
4. Cultivate children's hands-on ability, observation, logical thinking and reasoning ability.
5. Cultivate children's ability to recognize numbers.
Activity preparation:
Each child has four photos of radish, a record card, four rabbit brooches, some leaves with numbers written on them, and two bare tree backgrounds (No.3 and No.4).
Activity flow:
1, perform "Close and Detach".
2. Game: "We are all good friends". Composition of preliminary exploration. Today, there are some mysterious guests in our class. Guess who they are? (Four children wearing rabbit brooches appear). How many rabbits are there? (4 rabbits) Four rabbits play the game "We are all good friends" together, form a circle, walk hand in hand and read nursery rhymes:123,321 We are all good friends, good friends, hand in hand, you squat down, I stand up, how many can 4 be divided into? 4 can be divided into 1 and 3. ...
3, children's operation: "Divide radish", constantly explore a variety of divisions of 4 in the operation activities, and learn to record.
The rabbit said, "We won't play today. Let's go home and share the radishes. " Please give the rabbit a share and give the mother rabbit and the baby rabbit four radishes. Both mother rabbit and baby rabbit should have radishes. How to divide it? Record the result of a score and write it on the record card to see who scores quickly and accurately.
Children's operation, teacher's guidance.
4. Consolidate the game: "Collage colorful trees".
The rabbit said, "In winter, we harvested radishes, but in winter, leaves of many big trees fell off the trees, leaving only bare branches, which were very ugly." The children in our class are not only clever, but also helpful, right? " Let's hang beautiful leaves on this big tree and make it a colorful tree, shall we?
Please stick numbered leaves on the third and fourth trees. If the two numbers on the leaf add up to a few, stick them on the third and fourth trees.
Today, we learned the composition of 4. Let's hold up the radish and sing the composition of 4 with the song "Close and Separate", shall we?
Chapter III Mathematics Teaching Plan for Kindergarten Large Classes: Decomposition and Combination 6
Activity target 1. Children feel the decomposition and composition of 6 through independent exploration and hands-on operation, and master the five main points of 6.
2. On the basis of perceiving the decomposition and synthesis of numbers, master the increasing and decreasing law of digital synthesis.
3. Develop children's ability to observe, analyze and record, and cultivate children's interest in mathematics.
Focus of activities
Perceive the relationship between the whole and the part, and learn and record the five points of 6.
Activity difficulty
Summarize the law of decomposition and synthesis of numbers within 6.
Activities to be prepared
Teaching AIDS and multimedia courseware
Activity process
First, the beginning part
1, game: battle (review the decomposition and composition of 5)
Teacher: I said 5. Yang: I am about five years old.
Teacher: 5 can be divided into 1 and several children: 5 can be divided into 1 and 4.
（......)
Teacher: 5 can be divided into 4 and several children: 5 can be divided into 4 and 1.
2. Review the division and the types of 2, 3, 4 and 5, and draw out that there are five kinds of division in 6.
In today's activity class, we will learn the decomposition and synthesis of 6. (Show the topic and watch it twice)
Second, the basic part
1, children begin to operate building blocks, explore the five points of 6, and record the results of the exploration on the homework paper.
2, children hands-on operation, teachers patrol guidance.
3. Let the children report the results of the operation. Which child will tell the teacher the division of 6 you found?
Let the children talk, write their records on the blackboard and compare them.
4. Guide children to observe the splitting formula of 6. What did you find? (Hint: What changes have been made to the figures on both sides? ) The number on the left is greater than 1 times 1, which is called increase, and the number on the right is less than 1 times 1, which is called decrease. Two sets of figures have been exchanged, but the total has not changed. This is the law of number decomposition and combination.
5. Let the children demonstrate the five points of 6.
6. Split reading 6.
6 can be divided into 1 and 5, 1 and 5, which add up to 6.
Third, the conclusion part.
1, it's time for the little question mark: he wants to check our children's study.
(1) (courseware demonstration) Fill in the missing numbers.
(2) (courseware demonstration) Fill in the shortcomings.
2. Play games: In this activity class today, the children learned the decomposition and combination of 6, and learned several divisions of 6? Let's play another game together.
Lao: Tell me, kid, how much can 6 be divided by 1?
Yang: Teacher Liu, I'm telling you, 6 can be divided into 1 and 5.
..........
Four. Promotional activities
The children in our class are really great. They learned the decomposition and composition of 6 in such a short time. Now the teacher gives each child a task. If the children have six peaches now, the teacher wants them to share them with your parents. How should they share? Will the children please share it with their parents when they get home?
Chapter four: the compilation of 8 math teaching plans for kindergarten large classes.
Activity goal: 1. Exploring the composition of 8, we know that there are seven ways to divide 8.
2. Have a preliminary understanding of the law of "the number of parts is interchanged and the total number remains unchanged".
3. Experience the wonder and fun of mathematics and like mathematical activities.
4. Cultivate children's ability to recognize numbers.
5. Stimulate children's interest in learning.
Highlights and difficulties of the activity:
The key is to explore the composition of 8, knowing that there are seven ways to divide 8.
The difficulty lies in understanding the law of "the part number is interchanged, but the total number remains unchanged".
Activity preparation:
One background map of the route, eight small trees as teaching AIDS, several digital cards from/kloc-0 to 7, three large recording papers for teachers, one jigsaw puzzle for children, eight small nails, one recording paper and one pencil each.
Activity flow:
Introduce the game first, and review the composition of 7 through the game of "touching the ball".
"Today, let's play a game of' touching the ball'. I want to find a number that adds up to 7 with my number as my friend. " (Children's Song: Hey! Hey! How many balls did my 1 ball touch? The child replied: Hey, your 1 ball touched 6 balls! )
Second, children's operation: explore the composition of 8.
"A new road has been built in the forest park. Small animals are going to plant small trees on the left and right sides of the road, so that the road will look more beautiful. Then please take a look at how small animals are grown. Record your seed method on paper in a decomposed way. "
1. Children's operation and teachers' patrol guidance.
2. Communicate and record the results, and the teacher will demonstrate on the whiteboard.
Show children's record results in an orderly and disorderly arrangement, and guide children to observe the two record results, which one is easier to remember and why?
"Please have a look and tell me what you find." The number on one side is getting bigger and bigger, and the number on the other side is getting smaller and smaller. )
Summary: There are seven ways to divide the number 8 by * * *.
Third, explore the composition of 8 again, and guide children to learn to find out several corresponding compositions of 8 by exchange method.
1. Show the activity teaching aid: Let the children count the trees to be planted by small animals together? (8 trees).
2. The teacher demonstrates the teaching aid, and other children look for the decomposition formula on the paper according to the operation, and talk about the meaning of each number.
"Eight small trees, 1 trees are planted on the left side of the road, and seven trees are planted on the right side of the road, which can be divided into 1 trees and seven trees. 1 tree and 7 trees together make 8 trees. Eight trees can be represented by the number 8, 1 tree can be represented by the number 1 and seven trees can be represented by the number 7. "
3. The teacher wrote down the decomposition formula of 8 on the blackboard and told the children that 8 can be divided by 1 and 7, and 1 and 7 add up to 8.
"Which decomposition will children think of when they see this decomposition?"
Guide the children to say that 8 can be divided by 7 and 1.
"Look, children, 8 can be divided into 1 and 7, or 7 and 1. Their numbers have not changed, or 1 and 7, but the positions of the numbers have been exchanged, and the total number has not changed, all of which are 8. "
4. By analogy, find out the other two groups of corresponding points of 8.
8 can be divided into 2 and 6, 8 can be divided into 6 and 2; 8 can be divided into 3 and 5, and 8 can be divided into 5 and 3. ...
Summary: children, today we found seven kinds of division of 8 by ourselves, and also quickly found three groups corresponding to 8 by using the exchange law. As long as children remember these rules, it will be easier and faster to learn the composition of numbers in the future.
Fourth, the end.
Show me your ticket: 1-7. The teacher is handing out tickets to the children now. Please go to those children who have a total of 8 tickets in their hands. Find the right one to get on the bus!
The fifth chapter is the decomposition and composition of 10.
Activity goal: 1, guide children to perceive the decomposition of 10, and master the nine points of 10.
2. On the basis of the decomposition and composition of perceptual numbers, master the law of the increase and decrease of the composition of numbers and the law of mutual exchange.
3. Develop children's observation and analysis ability and cultivate children's interest in mathematics.
Activity preparation:
1 and 10 are decomposed into teaching courseware.
2, a number of small stars.
Activity flow:
(1) Learn the decomposed composition of 10.
1, story import
(1) How many rabbits are there?
(2) 10 The rabbit is going to live in two small houses. How should they live?
Introduction of the topic "Decomposition and Synthesis of 10".
2. Look at the pictures and learn the various points of 10.
3. Guide children to observe the decomposition formula of 10, and find that the composition law of the internal number decomposition of 10 is summarized: except 1, the types of each sub-method are less than their own1; Divide a number into two smaller numbers, and the sum of the two divided numbers is the original number; Divide a number into two parts. If one part increases 1 and the other part decreases 1, it is the law of addition and subtraction. Law of exchange.
(2) Game activities "guess".