Second, the activity goal: 1, cognitive goal: learn the division of 5, know that 5 can be divided into two parts and there are four divisions, and record the results.
2. Ability goal: In the exploration and calculation activities, know that it is not easy to miss numbers in sequence. In the observation, it is found that the quantitative relationship between the two parts is increase 1 and decrease 1.
3. Emotional goal: Experience the fun of playing a role through shopping games and be willing to participate in math activities.
Third, the key points and difficulties of the activity: key points: learn the composition of 5, and know that there are four difficulties in the composition of 5: knowing the law of complementarity and the law of exchange.
Fourth, activity preparation: 1, teaching AIDS: enlarge the operating materials.
2. School tools: shopping vouchers, fruit cards and record cards.
5. Activity flow: (1) Stimulate interest and introduce children's interest 1. Create a situation to stimulate children's interest in activities Teacher: Today, Mother Rabbit's fruit supermarket opened today. All the fruits in this fruit supermarket sell 5 yuan money.
Mother rabbit also prepared four shopping vouchers for each of our children.
2. Introduce shopping vouchers and record cards Teacher: What graphics are there on the shopping vouchers? (Circle) One circle represents 1 yuan, and two circles represent 2 yuan money.
How much is this shopping voucher? (3 yuan) Why? (Because there are three circles on it) Think about it. Which two shopping vouchers add up to 5 yuan money, just enough to buy a fruit? How many fruits can I buy in the future? (2), children's operation priority, experience priority 1, group activities (1) Each group has a shop assistant (listed), other children go to the shop assistant to buy fruit, and the shop assistant must strictly verify whether the children have paid 5 yuan money.
Teacher: The shop assistant must turn off his phone to see if the fruit buyer has paid 5 yuan money, otherwise he will lose money.
After buying fruit, customers should record which two shopping vouchers they used and what fruit they bought on the record card, and then buy it again to see who bought more.
(2) Children record their purchases on cards. For example, I bought 1 apple with 1 yuan and 4 yuan money.
The first shopping voucher, the second shopping voucher, Apple Peach ●●●●√ 2. Show the record cards of individual children and know that there are four kinds of compositions in 5. Who will tell you which two shopping vouchers can be used together to earn 5 yuan? Teacher: Oh, there are so many kinds of division of 5. Let's talk about it in order.
5 can be divided into 1 and 4 5. How many ways are there? (4 kinds) (3) Induce laws, popularize the concept of 1, guide children to observe teaching AIDS, and look for the exchange relationship (1), and inspire children to look for teaching aid diagrams with the same number of points but different positions. 4 points, a group of 1 points has the same number of points as the following 1 points and a group of 4 points, but the positions are different (2). Take a set of 1 point teaching aid diagrams and explain them. When you see four points and 1 point, you can think of 1 and four points.
(3) Continue to find out two sets of teaching aid diagrams of three points and two points with the same number of circles but different positions, and conclude that when you see three and two, you can think of a set of two and three. It is concluded that 5 can be divided into 4 and 1 or 3 and 2, or 1 and 4 or 2 and 3. And 4 and 1, 1 and 4, 3 and 2, 2 and 3 add up to 5. Therefore, we can only remember two groups, and then we can think of the other two groups that exchange places.
Example ●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●● ●● ● ● ● 41325 ∧1423 (4) As in the above step 3, demonstrate the composition subgraph of explanation 7, that is, demonstrate it.
(5) According to the last formula of 5, it is concluded that 5 can be divided into 4 and 1 or 3 and 2, or 1 and 4 or 2 and 3; And 4 and 1, 1 and 4, 3 and 2, 2 and 3 add up to 5. So you can only remember two groups, and then you can think of the other two groups.
2. Guide children to observe teaching AIDS and find the complementary relationship (1). Inspire children to observe the relationship between the teaching AIDS on both sides according to the teaching aid diagram composed of 5 parts. Ask the children: "Look for it, is there any secret in the numbers on both sides?" On the basis of children's exploration and discovery, it is concluded that the teaching aid from top to bottom is 1 less than 1, while the teaching aid from top to bottom is 1 greater than 1.
(2) Explain the advantages of this kind of classification, that is, it is orderly and neat, and it is remembered firmly, without omission or repetition, and the speed of classification is also fast.
●●●●●●●● 5 ∧ ●●●●●●●●●●● 41●●●●●●●●●●●●●●●●●●●●●● ● ● ● ● ● ● ● ● ● ● ● ● ●14 (3) In the same way, explain the composition formula of 5. (4) Children's hands-on operation trainer: Just now, we played the fruit shop game, and when we played, the children learned four points of 5. What a clever little friend! Now Mother Rabbit wants to help our children. Bunny learned the combination of 5 in kindergarten, but still can't. Please ask our children to show it to him. Would you like to? (1) Show the operation data and introduce the practice.
(2) Children's operation and teacher's guidance.
Observation record of large class mathematics area: the composition of numbers _ kindergarten large class mathematics teaching plan: understand the composition goal of numbers within 10: 1. Review and consolidate the composition of numbers within 10, and practice the addition and subtraction of numbers within 10.
2. Develop children's logical ability and improve the sharpness of thinking.
Preparation: Numbers form cards with multiple groups of cards marked as 0- 10 (1.5 times the number of children). Process: 1. The digital game "Find a friend"-give each child a 0- 10 digital card and stick it on his chest. The teacher shows a digital card, such as 7, and asks the children to make friends with another child whose number is 7 by adding and subtracting the numbers on their chests.
(1) First, look for friends in pairs, that is, the sum of the two children is 7. (2) Let two children with different numbers be friends. (3) Please find children with suitable friends to stand hand in hand and say the equation of 4+3=7.
Prompt reminder: If the number in the teacher's hand is 8 and some children's chest is 2, then these children can be friends with the children with the number 6 or with the children with the number 10, but only one of them can be friends.
2. The game "Fanduo" (1) Two teachers demonstrate the rules of the game: 30 cards are disrupted, players take turns to touch 10 cards, and the remaining 10 cards are buckled in the middle of the table.
One of the players first opens any card on the desktop, and the number on this card is this number. Then find two numbers from your own hands, add or subtract these two numbers to get the same number as the turned card. After confirming the correctness, put the three cards neatly on your side. Then it's another player's turn to open the card on the desktop, and so on. If the turned card is 5, and there is nothing in your hand to add or subtract the number equal to 5, then take this card as your own. When the cards in the middle of the table are turned over, the winner is the one with fewer cards in his hand.
(2) Children in the group continue to play games in pairs.
Observation record of large class mathematics area: number composition _ large class mathematics activity "decomposition of numbers within 6" large class mathematics activity "decomposition of numbers within 6" kindergarten large class mathematics activity: decomposition of numbers within 6 Instructor: Gan Ying Activity goal: 1. Through independent exploration and operation, children feel the decomposition of numbers within 6 and master the five points of 6.
2. On the basis of perceiving the decomposition and synthesis of numbers, master the increase and decrease law of digital synthesis, ordinal number and reciprocal.
3. Develop children's ability to observe, analyze and record, and cultivate children's interest in mathematical activities.
Activity preparation: there are red and yellow snowflakes and some cards on both sides; Each person has a square basket; One pen per person; One form paper for each person; .
Activity flow: First, the teacher shows the teaching aid-snowflake, and uses the song demonstration operation to stimulate children's interest.
Teacher: Show me snowflakes and ask: What do you think this is, prion boy? Teenager: Snowflake. Teacher: What's the difference between this snowflake and what we usually play? Teenager: The teacher's snowflake has different colors on both sides. One side is red and the other side is yellow. Teacher: Today, the teacher will play flop with you. Please watch the teacher play first.
The teacher put six flowers in his hand, put his hands together, shook them up and down, and began to read children's songs: turn, turn, turn, how many pieces of red? How many yellow ones? After reading it, scatter the flowers in your hand into a square plate! And pick up the plate and let the children observe how many pieces of red it is. How many yellow ones? Such as: 1 red, 5 yellow; Give up 4 pieces of red and 2 pieces of yellow, and the teacher will record the results in the corresponding table. Red squares record the number of red snowflakes, and yellow squares record the number of yellow snowflakes. By analogy, ask individual children to demonstrate and record the different results of each turn.
Second, children operate and record the results, and teachers tour to guide. Teacher: Please go back to your place, turn the flowers by yourself, and record the results of turning them out on the table with corresponding colors. You should record different results, fill in the form completely, write down your name and show it on the blackboard. Children operate independently. Third, the teacher asked the children to show their finished works on the blackboard, and asked individual children to tell the results they turned out and praise them.
Fourth, the teacher shows the physical diagram and the decomposition diagram of the number within 6. Let the children observe and find out what? Teacher: You can see that six apples can be divided into five different ways: 1 and 5,2 and 4,3 and 3,4 and 2,5 and 1. What else did you find besides these? , increasing, decreasing, ordinal number, reciprocal,. Praise the children.
Five, children randomly draw less than six cards, teachers tour guidance, and give children appropriate praise.
Teacher: Later, the teacher will let the friends return to their positions, pick up the cards in the basket and draw out the cards with numbers less than 6. Abstainers will play card games with your friends. For example, if your friend draws five cards, how many will you draw? Yang: Draw 1 card and tell your friends the result of your drawing. Draw cards by analogy. Children and friends play card-drawing games at will, and the teacher does not guide them when observing.
Sixth, the activity is over.
Zhou Lu Town Central Kindergarten 201April 19 Physical picture: 6 15 24 33 42 5 1 This article comes from the First Library Network: http s://www.wenku1.net/news/AE/kloc.