Perceive the number of classes in 7 lesson plans 1 1. Activity objectives:
1, learn to observe the number group intuitively, and can perceive numbers within 7, regardless of the arrangement of objects.
2, can match a few things, and sort by quantity.
3. Enhance children's interest in participating in math activities.
Second, the activity preparation:
Multimedia courseware, physical projector. Each person has a digital card (5, 6, 7). Some pictures of fruits. Everyone will get a copy of the operation materials.
Third, the activity process:
1. Show multimedia, introduce topics and arouse children's interest.
"Today, the teacher brought a friend to see the children. Who do you think he is? (Little Monkey) It's autumn, and the little monkey wants to pick fruit for the children. " (Showing multimedia: three fruit trees, five pears, seven apples and six persimmons. )
Q: "What do you see?"
"The little monkey also saw it. How many pears did the monkey pick? How many apples? How many persimmons? "
2. Quantity pairing
(1) "Please help the little monkey find a digital friend for the fruit he picked. If you find it, raise the number. " (Play multimedia to confirm the child's answer)
(2) "Now, our children will also pack a kind of fruit, and the number of fruits packed should be the same as that of others.
As many as little monkeys. "Children are free to choose fruits and operations.
Q: "How many fruits did you pack?"
3. Arrange the fruits in order.
"The little monkey said to ask the children to do me a favor and arrange these fruits in the order from less to more and from less to more. Who should rank first? "
The little monkey should give its fruit to its good friends, rabbits, kittens and puppies, and give fruit to as many friends as possible.
5. Group activities
"The little monkey has several questions to test our children. Do you have the confidence to do it? " The teacher explains the requirements of the topic (click on the card to connect the dragon and add ideas). Children are free to choose operating materials and exercises.
6. Evaluate children's homework.
"What did you do? How did you do it? "
Perceive the activity process of middle school classroom teaching plan 2 within 7 years;
First, the little monkey picks the fruit.
1. The little monkey has an orchard at home. All the fruits he planted are ripe. The little monkey wants to invite the children to visit his orchard and see what fruit there is. Open the computer screen and let the children enter the scene created by the computer. )
2. How many pears are there in the pear tree? How many apples are there on the apple tree? How many persimmons are there on the persimmon tree?
(Comments: This part is mainly to let children observe the number of groups intuitively, and can correctly perceive the number of groups without being affected by the arrangement of objects. )
Second, arrange the fruits.
1. The fruits are all ripe. The little monkey picked them one by one and picked three pots of fruit.
What fruit is the first pot? (Teaching activities that connect the fruit types asked and turn them into numbers)
How many pears are there in the first pot? How many can five pears be represented by numbers?
How many apples are there in the first pot? How many apples can five represent?
How many persimmons are there in the first pot? How many can five persimmons be represented by numbers?
2. The little monkey asked the children to help him arrange the three pots of fruit in quantitative order from less to more. what should he do ？
Third, divide the fruit.
1. The little monkey is very happy. He picked so many fruits. He wants to give them to his good friends so that everyone can taste them. Look! The little monkey came to the rabbit's house first. He wants to share the fruit with the rabbit.
How many rabbits are there?
The little monkey asked the children to help him think about what fruit he should give the rabbits, just one for each rabbit, no more, no less. (According to the children's answers, the teacher matches the fruits and animals, so that the children can gradually understand and perceive the collocation of several things. )
Why do you want to feed pears to rabbits?
When the child made a mistake, he asked: The rabbit doesn't want persimmons or apples, and returns the fruit to the monkey. Why? The children got it right. In the animation, each rabbit got a pear. I was so happy that I jumped together.
2. Look! The little monkey came to the kitten's house. He wants to share the fruit with the kitten.
How many kittens are there?
What kind of fruit does the little monkey give the kitten, just one for each kitten, neither more nor less?
Why give persimmons to kittens?
3. The little monkey came to the puppy's house. He wants to share the fruit with the dog.
How many puppies are there?
What fruit does the monkey give the puppy, just one for each puppy, neither more nor less?
Why give the dog apples?
Fourth, practice in groups:
The little monkey thanked the children for helping him divide the fruit. He also brought some exercises to test the children.
Group 1: Add and delete ideas. Add or delete dots according to the numbers given in the title.
Group 2: Fill in the blanks in order. Print the corresponding dots in the blank according to the order of the points in the topic.
The third group: find the most graphic print numbers. Each group has three rows of charts. See which picture has the most, and print out the numbers corresponding to the most pictures.
Group 4: Find as many points as possible to print numbers. Each group has three rows of points, and the number of points in the two rows is the same. Find the same number of points and print out the numbers.
The design intention of middle school students' teaching plan 3 within 7;
Correctly perceiving numbers within 7 is the content of middle school mathematics teaching. The key and difficult point of this activity is that teachers should not only help children review and consolidate the numbers 5, 6, 7 and 3, but also guide them to correctly perceive and judge the numbers within 7, regardless of the size and arrangement of objects. Guide children to gradually establish the concept of number conservation. Because children's thinking is intuitive and vivid, and number is an abstract concept, it is often difficult to arouse children's initiative to learn only by a single picture and teacher's explanation, so it is difficult for children to understand and master it. Therefore, the purpose of making teaching software is to let children learn actively in a relaxed state.
Activity objectives:
Help review and consolidate the numbers 5, 6, 7 and 3, regardless of the size, shape and arrangement of objects, and guide children to correctly perceive and judge the numbers within 7.
Activity preparation:
Self-made multimedia courseware
Activity flow:
1, the little monkey picks the fruit
(1) The little monkey has an orchard at home, and all the fruits are ripe. The little monkey wants to invite the children to visit his orchard and see what fruit there is. (Turn on the computer screen)
How many pineapples are there in the orchard? How many apples are there on the apple tree? How many persimmons are there on the persimmon tree?
Step 2 line up the fruit trees
(1) The fruits are all ripe. The little monkey picked them one by one and picked three pots of fruit.
What fruit is the first pot? How many/much? How many digits can it represent?
What fruit is the second pot? How many/much? How many digits can it represent?
What fruit is the third pot? How many/much? How many digits can it represent?
(2) The little monkey asked the children to help him arrange the three pots of fruit from less to more. what should he do ？
Step 3 divide the fruit
(1) The little monkey is very happy. He picked so many fruits that he wanted to share them with his good friends. Look! The little monkey came to the rabbit's house first. He wants to share the fruit with the rabbit. How many rabbits are there? The little monkey asked the children to help him think about what fruit he should give the rabbits, just one for each rabbit, no more, no less. (According to the children's answers, the teacher asked the children to match animals, so that the children could gradually understand and perceive the collocation of things. Why do you want to give the rabbit persimmons?
(2) The little monkey came to Xiaohu's house. He wants to share the fruit with Xiao Hu. How many tigers are there? What fruit does the little monkey give the little tiger, just one for each little tiger, neither more nor less? Why?
(3) The little monkey came to the pigsty. He wants to share fruit with pigs. How many pigs are there? What kind of fruit should the monkey give to the piglets, just one for each piglet, neither too much nor too little? Why?
4. Practice in groups:
The little monkey thanked the children for helping him divide the fruit. He also brought some exercises to test the children.
(1) Add an idea
(2) Looking for a home
Perceive the number of classes within 7. Teaching plan 4 Educational objectives:
1, which can correctly count the numbers within 7 regardless of the size, shape and arrangement of objects.
2. Experience the interesting phenomenon of digital conservation.
3. Let the children judge the quantity correctly.
4. Develop children's observation and spatial imagination.
Activity preparation:
All kinds of physical cards, digital cards, dishes, touch boxes, smiling faces and crying faces.
Music tapes, tape recorders, etc.
Activity flow:
First, introduce as "Sister Moon" to stimulate children's interest.
Second, open the password of "intellectual paradise" and review the numbers within 7.
Show the numbers 5, 6 and 7, and guide the children to express the corresponding numbers with actions. (Teachers refer to the numbers, children do small animal movements and shout out the corresponding animal sounds.)
Third, participate in the "intellectual paradise" and feel the conservation of numbers within 7.
1, the teacher explained and demonstrated: Are the number of two rows the same? Guide the children to count.
2, the child is free to operate: (as many smiling faces, different crying faces)
A, compare the number of two groups of physical cards.
B, compare the number of two groups of objects on the plate.
C compare the physical quantities in the two boxes.
3. Communicate the operation results.
(1) Show physical cards with different sizes, colors, shapes and arrangements to guide children to perceive the number conservation within 7.
Let the children observe the difference in the picture. Different colors and sizes. Like what? The quantity is 1)
Summary: Although the size, color, shape and arrangement position are different, the quantity is the same.
(2) verification. (children check whether the result of their calculation just now is correct. The teacher finds out the mistakes and corrects them in the class. For example, there are three in both boxes, and you should change your crying face into a smiling face.
4, the game: hide and seek.
(1) Introduce the gameplay and rules. (Emphasis on counting before comparing)
(a) A child takes a card and finds a corresponding number of homes to hide; B, first count the numbers on the cards, and then find a good home; C, the wrong will be eaten by the wolf. )
(2) Children's games.
(the first time: a child found the wrong house, and the card in his hand was 6. He went into house No.7 and was eaten by a wolf. The second time, the cards on the door were changed and the children played again. Teachers should pay attention to remind children to count cards first, and then count the numbers on the door. )
5. Extension: Continue to play games in the corner.
Reflection and evaluation:
1, the number of "hide and seek" games can be 3-7.
In the game of "hide and seek", children can exchange cards or change cards at home.
3. Use games to break through the difficulties in the activity. The music of the game should be longer and the wolf can be more fierce.
4. We can emphasize the number of children in the middle class.
It is a good way to learn mathematics in the form of "operation-comment-verification".
6. Provide rich, operable and moderately difficult materials for children to operate, so that children can master boring mathematics knowledge and obtain abstract numerical concepts in hands-on operation.