Large class mathematics 1 activity goal subtraction teaching plan within 5
1. Let children understand the meaning of addition and subtraction.
2. Let the children master the addition and subtraction of 5.
3. Make children learn to answer simple addition and subtraction oral calculation questions, and initially cultivate their ability to analyze problems.
4. Be able to think positively and improve understanding and calculation ability.
5. Let children realize that there is mathematics everywhere in life.
Teaching emphases and difficulties
Make children learn to solve simple application problems of oral calculation addition and subtraction and cultivate the ability of preliminary analysis.
Activity process
First, talk about introduction to arouse children's interest.
Second, review the composition of five.
Third, display visual teaching AIDS.
Fourth, guide the children to dictate the addition and subtraction application problems of 5.
5. Play the game "Who is the fastest"
Six, writing formula
Seven, the teacher summed up.
Teaching reflection
1, contact students' real life, and let students realize that addition and subtraction are around us.
Students' real life makes them realize that addition and subtraction are around us.
3. In order to make students do oral calculation correctly and quickly, they must also be trained through various forms of exercises. I actively advocate the diversification of algorithms and provide students with opportunities for mathematical communication, with the aim of promoting students' mathematical thinking activities and improving their mathematical thinking ability. Because of the diversity of algorithms, different students have different problem-solving strategies. They will use their own methods to solve problems and have a deep understanding of solving mathematical problems, thus gaining experience in learning mathematics. These algorithms are the results of students' thinking according to their own basic knowledge and life experience. Each different algorithm represents a sense of innovation, thus effectively training divergent thinking.
The Design Intention of Subtraction Teaching Plan 2 within 5 in Large Class Mathematics;
This semester, the children in the big class have begun to learn the division and addition and subtraction of numbers within 10. In view of the situation that children's thinking in images is dominant and logical thinking is almost absent, I have integrated mathematics learning into stories, PPT animations, games and other activities, and achieved good results. Children learn easily in this learning atmosphere, and their teaching goals are achieved unconsciously. My design idea is as follows, and I hope to get criticism and correction from my peers.
Activity objectives:
1. Learn the subtraction of 5, understand the quantitative relationship between the graphs, and understand the meaning of "going" and "staying".
2. Learn to express the meaning of subtraction formula in concise language.
3. Experience the fun of math activities.
Activity preparation:
1.PPT, every child has a set of digital operation cards.
2. There is a mailbox with the number 1 ~ 4, which contains several "letters" with an addition formula within 5.
Everyone should have a drawing card and a pen to demonstrate.
Activity flow:
Play the game of "touch the ball" first and review the composition of 5.
Teacher: Children, today the teacher will play a game of "touching the ball" with you.
Explain the rules of the game: the number of balls the child said and the number of balls the teacher said add up to five. The teacher said, "How many balls did my ball touch?
"The child replied," Your 1 ball touched four balls. Children can answer in groups or practice alone.
Second, introduce the topic and learn the subtraction of 5.
1. Show PPT①.
Teacher: I played the game of "touching the ball". I want to take you to the park. Let's go!
(1) How many buses are there at the station? What is the number of babies? How many cars did you drive? What is the number of babies? How many cars are left?
(2) Teacher (showing "-"): What does this symbol mean? (Guide children to discover the meaning of "minus sign". )
(3) The teacher answers the blackboard according to the children: 5- 1 = 4 (Read this formula together. )
(4) Teacher: What does this formula mean? (Can guide children to understand the meaning of the formula. )
(5) Teacher: Please tell the meaning of the formula with the teacher's picture and put a pendulum formula.
2. Show PPT②: How many butterflies are there in the garden? What is the number of babies? How many butterflies flew away? (2) What is the number of babies? How many butterflies are left?
3. Show PPT③: There are 5 fish in the pond, 3 fish have swam away, how many are left? Please use the formula.
4. Show PPT④: Is there any bread in the grocery store? How many pieces did you buy? How many pieces are left? Please use the formula.
Third, the game: sending letters (see the calculation)
(1) Show the game materials 1-4 e-mail box and many letters for children to observe, think and discuss the rules of the game.
(2) Let the children open four mailboxes in groups and check whether the "letter" is delivered correctly according to the rules of the game.
Fourth, look at the graphic calculation and further master the subtraction within 5.
Teacher: Children, today the teacher took you around the park, saw beautiful scenery, tasted delicious food, learned subtraction calculation, and played the game of sending letters. Now I want to test you. Look at these pictures, work out the formula, work out the answer and see who is the best.
Children's operation, teachers' tour guidance.
Teacher: How did you arrange it? What does this formula mean? (According to the children's answers on the blackboard, verify collectively. )
Five, the application of contact life
1. Teacher: Have you ever thought about what can be calculated by subtraction in life?
2. When you get home, will you ask your parents some math questions with the skills we learned today?
Subtraction teaching plan within 5 Large class Mathematics Part III Activity goal:
1, review the addition and subtraction within 5, and continue to learn the addition and subtraction formula.
2. Understand that the combination is represented by "one * * *" in the addition problem and less by "remainder" in the subtraction problem.
3. Pay attention to keeping the correct sitting posture when writing.
4. Cultivate children's ability to recognize numbers.
5. Let children learn simple math problems.
Activity preparation:
The children have a piece of homework paper and some pictures.
Activity flow:
First, the little mouse bought a bagel.
1, Teacher: The little mouse went to buy doughnuts for the big tiger as a snack. Look how many doughnuts he bought. Show three pictures to guide children to observe and talk about the meaning of each picture one by one: the first picture-the mouse bought 1 bagel; The second picture-the little mouse bought four more bagels; Figure 3- The little mouse bought five bagels. Guide children to understand that "a * * *" is to combine bagels bought twice.
Teacher: Can you use an expression to express the fact that the mouse bought a bagel? Encourage children to try adding formula.
3. Guide children to look at the formula, talk about the meaning of numbers and symbols, and judge whether the formula is correct.
Second, big tigers eat snacks.
1. Teacher: Big Tiger loves this snack. Look how happy it is. Show three pictures and guide the children to observe and say the meaning of each picture: the first picture-the big tiger has five bagels; The second picture-the big tiger ate 1 bagel; The third picture-the big tiger has four bagels left. Guide children to understand that after eating bagels, "leftover" means less.
2. Teacher: Can you use an expression to express the fact that the big tiger eats doughnuts? Encourage children to try subtraction.
3. Guide children to look at formulas and talk about the meanings of numbers and symbols.
Third, the Group's operation activities.
1, as shown in Figure 5 for the addition and subtraction formula. Guide children to carefully observe the changes of the three pictures on the homework paper, and learn to boldly say the meaning of the three pictures with the words "one * * *" and "surplus". Encourage children to list the addition and subtraction formulas of 5 according to the meaning of the picture.
2. Look at the graphic characteristics of graphic records. Look at the formula, plus or minus 5.
3. Look at the numbers written in the formula. Read the formula, demonstrate the number change process of the formula with snowflakes, and write the numbers.
Activity reflection:
In order for children to calculate their mouth correctly and quickly, they must also be trained regularly through various forms of practice. I actively advocate the diversification of algorithms and provide opportunities for children to communicate in mathematics. The purpose is to promote children's mathematical thinking activities and improve their mathematical thinking ability. Because of the diversity of algorithms, different children have different problem-solving strategies. They will use their own methods to solve problems and have a deep understanding of solving mathematical problems, thus gaining experience in learning mathematics. These algorithms are the result of children's thinking according to their own basic knowledge and life experience. Each different algorithm represents a sense of innovation, thus effectively training divergent thinking.
The fourth part of the big class mathematics subtraction teaching plan activity goal within 5:
Learn to say the meaning of subtraction in language and experience the meaning of "remainder"
Observe the arrangement of the patterns, and then draw according to the patterns.
Cultivate children's habit of talking while operating.
Cultivate children's interest in calculation and the accuracy and agility of thinking through various sensory training.
Activity preparation:
Teaching aid: Three pictures with numbers and symbols on them.
Activity flow:
Group activities.
Show me the picture 1.
"These three photos tell the same thing. Take a closer look at who can make each picture clear in one sentence? " Let's start with the first picture. There are four bees on the flower. ) "Look at the second picture. Who will speak? ""How do you know if you are coming or leaving? " (Two bees fly away. ) "Let's connect the first picture with the second picture and think about what the third picture should say?" There are two bees left on the flower heart. "Let's talk about three pictures together."
Record with a formula and express the meaning of the picture.
1, "Who will use a formula to record this? Do you think he remembers correctly? "
2. "Who can tell me what each number and symbol in this formula in the picture means? Read the formula twice. "
Look at the subtraction formula of three pictures in group activities.
Feeling after teaching: Through the study of this lesson, let the children say the meaning of each picture in concise language, learn to say the meaning expressed by the subtraction formula in language, and experience the meaning of "Yu".
Activity reflection
According to the spirit of the syllabus, teachers can create mathematical situations, provide intuitive and operable materials, adopt various teaching methods, arouse children's observation, thinking, exploration and operation, effectively train children's multi-directional thinking, and mobilize their enthusiasm and initiative in learning.
Subtraction within 5 Teaching Plan Large Class Mathematics Activity Goal 5
1, can add and subtract numbers within 5 with representation, and can express the operation process in language.
2. Develop thinking in images.
3. Cultivate children's ability to recognize numbers.
4. Let children learn simple math problems.
Important and difficult
1, key point: understand the meaning of addition and subtraction.
2. Difficulties: express the operation process in language.
Material and environmental creation
1, material: plastic animals, snowflakes and other items. 1-5 digital card. Picture card for addition, subtraction, multiplication, division and drawing. Sealed.
2. Environment creation: Place the above materials in the math area for children to manipulate, explore, review and consolidate activities.
Design concept
Oral addition and subtraction is the beginning for children to learn addition and subtraction, and the focus of the activity is to let children know the significance of addition and subtraction. In teaching, it is necessary to avoid making children form a wrong mindset, that is, "one * * *" in the topic is addition and "remainder" is subtraction. When designing, children can be exposed to different expressions, such as addition, one is to "combine" two partial numbers, and the other is to "add a few" on the basis of one partial number. Another example is subtraction, one is to remove a part from the total and find the remaining part, and the other is to find the reduced part by knowing the total and the remaining part. Help children to combine the psychological operation activities of combination or division with addition and subtraction with concrete image methods, so that children can really understand the significance of addition and subtraction.
Another purpose of this activity is to develop children's thinking in images. Because representation is the intermediary of the transition from concrete image thinking to abstract logical thinking, children have to manipulate and use representation to calculate addition and subtraction. Finally, the calculation of abstract numbers can be realized. Therefore, when designing, we should first let children accumulate rich representations, and then encourage children to use representations for operations by solving oral application problems. In addition, it is also an effective way to improve children's thinking level to let children express the calculation process in language. However, at the beginning, children will have some difficulties. In teaching, visual teaching AIDS can be presented appropriately to help children clear their minds.
Activity flow
Operating experience-> discussion and understanding-> review and consolidation
1, operation.
(1) physical operation. Let children use plastic animals, snowflakes and other items to add and subtract, and use the corresponding digital cards to represent the operation results. For example, how many rabbits are three white rabbits and two gray rabbits combined?
(2) Look at the picture and calculate. Let the children add and subtract according to the meaning of the picture. Let the children say the pictures first, and then calculate the results.
Note: The graphic meanings provided should have different expressions of addition and subtraction. Such as addition, some count how many fruits are in two plates. Some children are playing and some are coming.
2. discussion.
(1) Show visual teaching AIDS to help children understand the meaning of addition and subtraction.
(2) Teachers make up application questions orally, and children use images to calculate and tell the calculation process.
(3) Children orally compile application questions.
3. review.
Children use seals of animals, fruits, etc. to make picture cards of addition and subtraction. , and answer the addition and subtraction questions on the card made by your partner.
Activity reflection
"Addition within 5" is taught on the basis of students' understanding of numbers within 5 and their preliminary understanding of the meaning of addition. The standard holds that: "Because students' living backgrounds and thinking angles are different, the methods adopted must be diverse. Teachers should respect students' ideas, encourage students to think independently and advocate the diversification of calculation methods. " So according to the characteristics of students, I designed the following teaching links:
1, review Ask students to set up learning tools. Set three and five first, then divide the three into two piles and the five into two piles, and talk about how to divide them separately. Ask the students to recall the composition in 5 minutes and prepare the addition in 5 minutes.
2. Explore new knowledge. Use the dynamic pictures of multimedia courseware to attract students' attention. After asking the students to tell the meaning of the pictures, let them take out sticks instead of balloons and swing them. Let the students know that addition is needed to close the balloons on the clown's hands. When they speak, they use gestures to show that they can do it. They are eager to show in conversation that they can do it. At this time, let some students talk more and deepen their impressions. Then ask the students to list the addition formula and guide them to know the plus sign. After the formula is listed, ask the students to talk about what each number in the formula represents, so as to prepare for learning to solve problems. When calculating the results, ask the students how to calculate. Some students said to divide, to combine, and some students said to count. They don't emphasize a certain idea, but affirm each one and encourage students to have different methods. When adding a larger number in the future, students will choose the most convenient and appropriate method and leave room for thinking.
3. Practice in layers. First, let the students take three sticks in their left hand and two sticks in their right hand. Ask how many sticks are together, and experience that the combination of sticks with two hands is 3+2=5. After several games, let the students read p24 and "Do" and say what the formula means. For the third picture, some students will say the meaning of the formula from the words on the picture, and some will say the meaning of the formula from the paper crane on the table, and they will all be sure.
This lesson tries to embody the concept of "respecting students and paying attention to development". Through students' observation, independent exploration, operation and expression, students can feel and understand the generation and development of knowledge and taste the fun of discovering mathematics. At the same time, after teaching, the diversity and interest of sensory practice need to be improved.
The name of activity of teaching plan 6 of subtraction in large class mathematics 5.
Mathematics Activities in Kindergarten Large Classes —— Subtraction within 5
moving target
1. Let children understand the meaning of subtraction and the meaning of subtraction by matching subtraction questions according to the meaning of the picture, and learn the fast oral calculation ability of subtraction questions within 5.
2. Cultivate children's abilities of observation, comparison, language expression and positive thinking.
Activities to be prepared
1. beverage card, bus arrival card, window opening card, and several subtraction cards within 5.
2. There is a mailbox with the number 1 ~ 4, which contains several "letters" with an addition formula within 5.
3. Everyone has a picture of an animal with a subtraction formula and some crayons for coloring.
Activity process
1. Look at the picture, match the formula questions and say what the formula questions mean.
(1) The teacher shows the drink card and the bus arrival card, and asks the children to use the pictures on the table to find the formula card for making friends.
1) Read the formula on the card you find.
2) Talk about the meaning of the pictures expressed in the formula questions.
Summary: We understand the meaning of the picture, find a formula to make friends with it, and know that we should remove a few cups of the original drinks and the people who got off the bus from the original passengers. When you want to calculate how much is left, you can use the subtraction formula to express and calculate the result.
3) Think about whether things around us about eating, using, playing and happening can also be expressed by 3- 1=2 or 5-2=3.
(2) Show the window card and let the children look at it carefully and think about it. What different subtraction formulas can be found in this picture to express the meaning of the picture?
Summary: Some pictures can only express one meaning, so you can only find a formula to be friends; Some pictures can express several meanings. You can find several different formulas and make friends with them. Look at the picture more carefully in the future and try to find out all the formulas that can make friends with it.
Play the game of delivering letters
(1) Show the game materials-4 mailboxes and many letters for children to observe, think and discuss the rules of the game.
(2) Let the children open four mailboxes in groups and check whether the "letter" is delivered correctly according to the rules of the game.
Computational coating
Show the problem card of subtraction formula within 5, calculate the problem of subtraction formula, and color it according to the answer. If the answer is 1, draw your favorite color. If the answer is not 1, you can't draw it.