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Math activity 8 composition teaching plan in large class
Composition 1 activity goal of math activity 8 in large class teaching plan:
1. Explore the composition of 8 and 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 records in order and disorder, and guide children to observe the two records, which 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!
"Now let's go to sightseeing bus and look at the beautiful forest paradise on the way to just plant young trees! (Check whether the combination is correct), let's go! "
Activity expansion:
"Today, we found three sets of corresponding parts of the number 8 together. Please go home and look for the remaining corresponding parts of the number 8 with your parents."
Activity reflection:
According to the learning situation and learning characteristics of the children in our class, only eight students were formed. From the initial question-and-answer game: reviewing the composition of 7 to looking for the difference of butterflies by looking at pictures, to freely manipulating the composition of 8, and finally consolidating the game of internalization and migration, the whole activity went smoothly, and the outline clearly pointed out that mathematics was useful and interesting. So many games run through this activity, so that children can have fun learning mathematics in the game. Children are also interested in these games.
Large class teaching plan 2 (1) Composition of math activity 8 Activity goal:
1. Learn to further perceive the composition of numbers within 8 through reasoning.
2. Learn to use the law of exchange and complementarity to guess the number of flowers caught and record the results.
(2) Activity preparation:
1. Material preparation: several flowers, recording paper and pens.
2. Material collocation: the operation material of the children's activity "Science Lovely Duck".
(3) Activity process:
1. Review the composition of 7 with clapping songs.
How to play: first determine a number "7", the teacher takes a number, and the children take a number. These two figures add up to the number "7" determined earlier.
Then the teacher shows the three-point combination of 7 on the blackboard in turn (namely 1 and 6, 2 and 5, 3 and 4), and guides the children to say the results of other three-point combinations by exchange.
2. Learn the composition of 8 through the "guess" game.
How to play: children in pairs, 8 flowers in each group, recording paper and pen. One hides, the other guesses.
Tibetan children hold flowers in both hands and show the number of flowers in one hand, so that they can guess. Children can guess the number of flowers in the other hand according to the numbers.
After guessing correctly, record the results on the recording paper, and at the same time deduce another group through reasoning. For example, show the flower block "1", and another child guesses "7" and records the result, at the same time inferring that the other group is 7 and 1.
3. Teachers and children share communication.
Teacher: 8 How many different groups are there?
The children answered with recording paper, and the teacher arranged the results of separation and integration in an orderly way on the blackboard.
Guide children to discover the exchange rules of 1 on one side and 1 on the other.
(4) Activity extension:
Regional activities: Continue to put in game materials, let children continue to play "guessing" games, and guide children to consolidate the composition and decomposition of numbers under 8.
The composition of activity objectives of 8 teaching plans 3 in large class mathematics activities;
1, learn the composition of 8, know that there are seven different ways to divide the composition of 8, and learn to divide and combine it in order.
2. Guide children to observe the complementary relationship between the two parts.
3. Call to inspire children to omit some related combinations.
Focus: Study the composition of 8.
Difficulties: Guide children to observe the complementary relationship between the two parts.
Activity flow:
I. Group activities
Review 7- Composition of Touch Ball
Let's touch the ball today. My ball and yours add up to 7.
Second, group activities, learning composition 8
A, the first group and the second group, color the dots.
How many points are there in each grid? (8)
Divide eight points into two parts. Please divide them into two parts. There are several ways to divide these eight points. Colour these points with an oil pastel.
B, the third and fourth groups, recorded by snowflakes.
C, print ideas and take notes.
Three. Activity evaluation
1 and composition of review 8
Let's see if these activities have been completed correctly. Let's see if these two sets of numbers add up to 8. Are the divisions and combinations of each group repeated? How many ways can 8 be divided into two parts? Which switching formula do you think is orderly?
2. Guide children to observe the complementary relationship between the two parts.
Please look at the numbers on the left. How can the next one be better than the last one? The one on the left becomes 2, which is 1. Where did this extra 1 come from? The 6 on the right is 1 less than 7, and the number on the left is the number on the right.
Please read the splitting formula, and we will record the splitting in an orderly way in the future.
Composition of large class teaching plan 4 math activity 8 1. Design intention:
The new "Outline" requires children to "perceive the quantitative relationship of things from life and games, and also pay attention to children's ability to explore operations, exchanges and cooperation." In the first stage of this semester, children have learned the composition and decomposition of numbers within 7, and have a certain experience foundation for the composition and decomposition of numbers. In the previous stage, children's learning enabled them to master the composition and decomposition methods of some numbers, developed the concept of arrays, further understood the relationship between numbers, and laid the foundation for children to learn addition and subtraction operations. In the math activity of Composition Eight, I provided practical objects for children, so that children can gain experience about the decomposition and composition of numbers through their own exploration and operation activities, and at the same time guide children to solve practical problems in life with the math knowledge they have learned, so as to apply what they have learned.
Second, the teaching objectives:
1, explore the composition of 8, and know that there are 7 divisions of 8.
2. Have a preliminary understanding of the law that the number of parts is interchanged and the total number remains unchanged.
3. Cultivate children's interest in calculation and the accuracy and agility of thinking through various sensory training.
4. Understand the application of numbers in daily life, and preliminarily understand the relationship between numbers and people's lives.
Third, the difficulties in teaching:
Teaching emphasis: Explore the composition of 8, and know that 8 has 7 kinds of division.
Teaching difficulties: initially understand the law that some numbers are exchanged and the total number is unchanged.
Fourth, teaching preparation:
1, a river background map, eight small trees for teaching AIDS, several digital cards for 1-7, and three large recording papers for teachers.
2. Every child has a puzzle, 8 small nails, recording paper and pencil.
Verb (abbreviation of verb) teaching process;
First, the game: "Touch the ball", review the composition of 7.
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!
Children play this game individually or in groups, which can be repeated!
Second, children's operation: explore the composition of 8.
-The bear has moved to a new home. The new home is beautiful, but there is nothing around it except a river. Every spring when the wind is strong, the wind always blows a lot of sand and makes the house full of dust. Sand always fascinates bear's eyes, which are red and swollen. The bear thought for a long time and decided to plant some small trees on the left and right sides of the river. When friends heard about it, they all sent trees to bear. Today the teacher prepared mushrooms for each child.
-Children's operation, teachers' patrol guidance.
-exchange and record the results, and the teacher presents them on the blackboard:
-Guide children to observe the results of two records and compare which one is easier to remember, and why?
Children, please look at the blackboard and tell me what you find. (The number on one side gradually increases and the number on the other side gradually decreases, like climbing stairs. )
—— Summary: There are seven ways to divide 8 * * *.
Third, explore the composition of 8 again, and guide children to learn to find out several corresponding compositions of 8 by exchange method.
-Show the activity teaching aid: Let the children count the trees that the bear wants to plant? (8 trees).
The teacher demonstrates the teaching AIDS, and other children look for the decomposition formula on the paper according to the operation, and talk about the meaning of each number.
-8 small trees, 1 planted on the left side of the river, and 7 species on the right side of the river. Eight trees can be divided into 1 and 7 trees. 1 tree and 7 trees together make 8 trees. Eight trees can be represented by the number 8, 1 tree by the number 1, and seven trees by the number 7.
-The teacher wrote down the decomposition formula of 8 on the blackboard, telling 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 are 1 and 7, but the position of the numbers has changed, and the total number has not changed, and they are all 8.
-and so on, 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 divisions of 8 by ourselves, and quickly found three groups corresponding to 8 by exchange method. 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 train tickets to the children now. Please go to the child who has a ticket that adds up to 8. Find the right one to get on the bus!
-Now let's get on the train and go to Bear's new home! (Check whether the combination is correct), let's go!
The expansion of intransitive verbs;
Complete the exercises with children's books.
Composition of Mathematics Activity 8 in Large Class Teaching Teaching Plan 5 Activity Objectives;
1, further study the composition of 7 and 8, and experience the interchange relationship between the two partial numbers.
2, can carefully observe the picture, can independently find out different features and try to split.
3. Willing to accept and try new methods to operate.
4. Cultivate children's ability to recognize numbers.
5. Guide children to actively interact with materials and experience the fun of mathematics activities.
Activity preparation:
Experience preparation: Young children have learned the composition of 7 and 8.
Material preparation:
Teaching aid: Turtle family map (7 turtles, 1 turtle, 6 small turtles, 3 on the shore and 4 in the water).
Learning tools: "Children's Book" The child has a pen in his hand.
Activity flow:
The tortoise family came out to play.
Teacher (showing a picture of the "tortoise family"), it's a beautiful day today. The tortoise family went out to play. Look, how many turtles are there? Are they all the same? What is the difference?
Remind children to record the total number first, and then guide them to observe the similarities and differences of some turtles on the map.
Teacher: We found many differences. Who divided the turtles into two groups according to these differences?
-Young children think and try to divide turtles into two groups. How many turtles are there and how many little turtles are there? According to the size characteristics, the number of turtles is recorded in a split way. Then find a different point to record, for example, according to the different positions of turtles, it is divided into three on the shore and four in the water.
Group operation activities
-Colored animals. Encourage children to observe pictures, list the small animals in the pictures according to the different characteristics of color, size and orientation, guide children to find different points, and list two combinations.
-See the on-off formula of the picture column. Ask children to observe the idea map, divide a row of ideas into two parts with short lines or color the ideas with two colors, and encourage children to use two split records, such as 8 can be divided into 1 and 7,7 and 1.
Activity evaluation:
Let the children show their operating data, and the teacher and the children check each other, and guide the children to observe the recorded results according to the exchange relationship, and find this recording method, that is, the numbers are the same, but the positions are different.
Activity reflection:
The origin and reality of mathematics exist in reality and are applied to reality. Mathematical process should be a process to help children turn practical problems into mathematical problems. The content selection of educational activities should be close to children's life, and choosing things and problems that children are interested in will help expand children's experience and vision. Make full use of the resources in children's real life, and have a substantial impact on children through the activities acting on them, so that children can feel the quantitative relationship of things in life and games, and experience the importance and interest of mathematics.
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