The design background of 1 five additional teaching plans for middle school mathematics
You have learned the composition and decomposition of 10.
moving target
1, cognitive goal: learn addition within 10 by drawing a circle.
2. Emotional goal: to cultivate students' ability of addition calculation.
3. Skill goal: to cultivate students' oral computing ability.
4. Develop children's logical thinking ability.
5. Stimulate children's interest in learning.
Important and difficult
By drawing a circle and adding within 10, the students' oral arithmetic ability is cultivated.
Activities to be prepared
Card blackboard
Activity process
First, the beginning link
Review what you have learned.
Second, the basic link
1, show me three black discs and seven white discs for the teacher to explain.
2. blackboard writing 3+7= 10 7+3= 10
3. Show four black discs and six white discs, and the teacher will explain.
4. Write 4+6= 10 6+4= 10 on the blackboard with the teacher.
5. Think about how much 10 can be divided into, draw it in the notebook and write the formula.
6, teachers patrol
7. Show the small blackboard and card1+9 =109+1=10.
2+8= 10 8+2= 10 5+5= 10
8. Train students' oral calculation ability and teachers' guidance.
Third, the end of the link:
Addition is the addition of two numbers.
Fourth, the extension link:
Test each other at the same table.
Teaching reflection
1, in the process of preparing lessons, I thought that the addition within 10 was the teaching difficulty.
2. In the process of activities, I fully understand and respect children, give them free play space, and make full use of small blackboards and cards to achieve teaching purposes.
In this lesson, I learned that children have learned the decomposition and composition of 10. On this basis, learn the addition within 10 to give full play to children's abilities.
In this class, teachers and children cooperate well, but the teaching is somewhat elementary.
5. My own advantage is that I can drive and guide the teaching and make the teaching complete smoothly.
My own shortcomings are: primary school teaching.
6. In the future teaching, I will apply the teaching methods of primary schools to children's teaching appropriately, and at the same time make more use of children's teaching methods.
7. If I have a new class, I will give priority to games and let my children play middle school.
8. Early childhood teaching is a science, which is different from primary education.
The Design Intention of Five Additional Teaching Plans II for Middle School Mathematics;
The addition class within 5 is the first time that children are exposed to calculation in mathematics learning. The knowledge base of this lesson is the division and combination of numbers within 5. Let children initially realize that solving problems requires adding two numbers. On this basis, through further demonstration, swing and calculation, children can learn to solve simple practical problems by addition, experience the fun of games in activities and improve their interest in learning mathematics.
Activity objectives:
1, a preliminary understanding of the meaning of addition, will correctly calculate the addition within 5.
2. It is the simplest method to calculate the addition within 5 with "the composition of numbers", which is the easiest for children to understand.
3. Let students experience the calculation process of addition through their operation and expression.
4. Make students actively participate in mathematics activities, gain successful experience and enhance their self-confidence.
5. Guide children to actively interact with materials and experience the fun of mathematics activities.
Highlights and difficulties of the activity:
Activity focus: teach children to learn to calculate the addition within 5.
Activity difficulty: Understand the meaning of addition.
Activity preparation:
1, courseware
2, record card, pencil, train headdress
Activity mode: explanation, demonstration, operation and practice.
Activity flow:
First, the scene import:
1, know the number within 10.
2. Listen to music and follow the teacher's rhythm.
3. Answer quickly and review the old knowledge:
Children, we have learned the division and combination of numbers. The teacher has several questions. Can the children tell us quickly how much to fill in the box?
How well the children know division and combination!
Second, know addition and understand meaning.
1, Teacher: Children, in kindergarten, we should not only love studying, but also love working. Look, these children are working hard!
What are they doing? Who will say something? There are three children watering the flowers.
Teacher's blackboard writing: 3
Teacher: Look, what appears? Who will say something? The second half of the example is shown. The water is almost finished, and two children are drawing water from a kettle.
Teacher's blackboard writing: 2
Teacher: Who can relate this matter and tell it completely?
According to three children watering flowers and two children carrying water, the teacher wants to ask a math question. (How many children does * * * have? )
2, lead to the topic:
The teacher asked: ① Three children are watering the flowers and two children are carrying water. How many children are there? That is to say, three children and two children are together. We will use addition to calculate, (blackboard title: addition) Reading: addition. In addition to calculation, we also need to use a new symbol: "+",which is called the plus sign (blackboard writing: 3+2). Repeat after the teacher: plus sign.
Teacher: Can you tell me what the plus sign means?
The plus sign means to combine the two parts and find out what * * * is.
(2) three children plus two children, a * * * how many children? (5) The teacher writes on the blackboard: = 5
How did you get five? (Children may have the following algorithms. Children can't speak, and teachers and children count together. )
A Let's count them together (referring to the drawing number 1, 2, 3, 4, 5,)-* * There are five.
How else can you count? After (3, 4, 5)3, adding two equals five.
Can c still calculate the result according to the division method learned before? (Three plus two equals five)
Can you read this formula? (children's trial reading)
Teacher's blackboard: Read: 3 plus 2 equals 5. Read with the teacher.
Third, practical application and strengthening of new knowledge.
Teacher: Now, the teacher will take you to the beautiful Swan Lake. Do you want to join us?
Health: Yes!
Teacher: Then let's begin! (Computer courseware demonstration: Beautiful Swan Lake)
Blue sky and clear water, how beautiful the scenery here is. Look, there are some beautiful swans in the lake. Please carefully observe the changes in the picture, and then tell the children what you see and think, ok? (Courseware dynamic demonstration: Another swan flies over the beautiful Swan Lake and slowly falls (Figure 2) to join the ranks of swans. )
Health: There were four swans in the lake, 1 swan flew in.
Teacher: You really use your head. Please think about it, how can we find out how many swans are in a * * *?
Teacher: The children in Class 2 are so smart. Do the animals want to study with you? Would you like to? (willing).
Courseware 2: Look at the picture carefully. Let's see who is the cleverest. Who can express the meaning of the chart with a formula?
Teacher: Click to summarize the children's answers.
Fourth, children's hands-on activities.
Small animals say that children are really smart! They want to compete with the children to see who has the best hands-on ability and who has the best skills. Now, children take out your digital card bags, put the four numbers 1, 2, 3, 4 given by the teacher, arrange several addition formulas with cards, and record the results on the exercise paper.
Game: Help Xiaoye find the mother tree.
How did the leaves on Guo Hua Mountain float here? It turns out that the baby leaves are separated from the mother tree, and the baby leaves must be very scared. Do something, children. Help Baby Ye, will you? Let's see what's on Baby Ye. There is a telephone number, which is an addition formula. Children can help Ye Baobao find the tree mother by counting numbers.
Children operate to hang leaves on a corresponding number of trees.
Six, the game: driving a train
Who's calling? Oh, Wukong called and invited us to visit water curtain cave. Are you happy? Shall we go by train? The teacher gave each child a train ticket, and the children worked out their own car numbers, got on the same car according to the numbers, and lined up behind the children wearing headdresses in an orderly manner. (You can't get on the train if you make a mistake), and you can also drive the train out of the classroom to the music of driving the train.
Teaching reflection
According to the age characteristics of young children, it is their nature to be active. At the beginning, their attention is very concentrated, their classroom discipline is very good, and their cooperation with teachers is very tacit. But after a long time, some children's attention may be distracted, and some children may be too excited because of the stimulation of games, so that the classroom order is a bit chaotic. At this time, teachers should give timely guidance, attract children with appropriate language, and adjust bilateral activities with children as the mainstay and teachers as the supplement, so as to make the classroom atmosphere active, orderly and lively, so that children can be in class.
The teaching goal of addition teaching plan 3 in junior high school mathematics 5;
1, children's games and hands-on operations, let children learn to calculate the number of additions is 5.
2. Further understand+,=
3, understand the exchange in the game+the number of both sides remains the same:
4. Actively explore mathematical activities, let children learn to solve simple oral arithmetic and addition application problems, and cultivate their ability to analyze problems initially.
Activity preparation:
Headdress, card, activity focus: addition activity difficulty: simple solution. On the application of oral addition.
Activity flow:
Introduction: (Review the composition of 5)
Teacher: The king of the animal kingdom invited us to visit his country. Would you like to? But we can't go until the code is unlocked. How does five break down into two and several? Health: The password is correct. Please come in.
Second, situational awareness-being a guest: the addition of picture learning 5.
Teacher: Children, the animal kingdom has arrived. Let's go to the small animal museum. Be careful not to be bitten by animals. Look at the picture, it adds up to less than 5, which means giving gifts to children. If the animals are wrong, the children will be detained. If you are quick, you can go to the homes of some small animals. Write your answer clearly.
Summary:
Teacher: What problem did you encounter just now? (Express four pictures in four sentences) How did you answer? (children's column formula) teacher record
Teacher: Let the children observe these formulas. "They have a little secret. Who can find it first? "
Teacher: Summary: The numbers of these formulas are all 5 and they are all addition, so these four formulas are the addition formulas of 5.
Teacher: Like 1+4=5, 4+ 1=5, the numbers are the same, but the numbers are the same, so when we see 1+4=5, we immediately think of 4+ 1=5. We call it the question of friends, and we also see 2+3 =. see ...
Third, consolidate and deepen:
Well, small animals all praise us for being smart. We all have toy tickets given to us by animals. Show us the price. You have 5 yuan money. You can buy those two toys. What will you buy and why? Can I still buy those two?
Infant operation
Summary:
Teacher: There are several ways. What do you buy?
Teacher: What if I buy three kinds for five dollars?
Summary: Are you happy in this class? We learn the formula that the number on the blackboard is equal to 5:1+4 = 5,4+1= 5,2+3 = 5,3+2 = 5,
Teaching reflection:
Some teaching objectives of this open class have not been fully considered, and they have not started from the actual situation of the class. The attendance rate of children in the class is not very good. Some children have learned the addition of 5, while others have not yet learned it. If your goal is to add less than 5, I will give you a good review class. In addition, your psychological quality needs to be strengthened. You are a little nervous during class, and you forget to talk about the pre-arranged content because of nervousness.
Additional teaching plans for junior high school mathematics 5 4 I. Activity objectives
1, deepen the understanding of numbers in operation and improve the ability of calculating and writing application problems.
2. Understand the meaning of addition and subtraction by operating the "addition and subtraction board".
3. Take an active part in games, use your brains to think and experience the fun of math activities.
Second, the activity preparation
1, teaching aid preparation: addition and subtraction board; A box; PPT courseware for addition and subtraction within 5; Music.
2. Preparation of learning tools: addition and subtraction board; Add and subtract the number of envelopes within 5; There are several animal headdresses with formula questions written on them.
Third, the activity process
1, at the beginning. Game: touch the ball game. (Review the decomposition of numbers within 5) The teacher shows a treasure chest and lets the children guess what's in it. There are number plates 2-5 in it. ) The teacher reached in and touched one, and then asked the child how much it was. After the child answered, the teacher said, "Let's play a game of touching the ball, a total of five." Kid, let me ask you, how many balls did my two balls touch? Miss Tingting, I tell you, your two balls hit three balls. Draw cards twice in a row and play three times.
2. Basic part.
(1) Breakthrough game. The teacher plays PPT to let the children break through some topics. A total of 5 levels, each level is successful, and the teacher rewards the children with big smiling faces. Until the end.
(2) Challenge the game. Complete the formula problem of the envelope. Ask the children to help the teacher figure out the number of formula questions on the envelope. Two children work together. One child operates the addition and subtraction board, and the other child is responsible for recording numbers. Which group of children can finish it fastest will get the teacher's reward smiling face.
3. The last part. Game: small animals find homes. Let children help small animals find their own homes. Every small animal has a recipe problem. Find the corresponding house number after counting the numbers. The teacher drew five numbered circles in the classroom in advance, and the children began to find a home while listening to music. When they hear the music of wolves, if they don't find a home, they will be eaten by wolves. Children exchange headdresses, and the game can be played twice, depending on the time.
The teacher concluded: "Today we reviewed the addition and subtraction within 5. Children behave well and can test their parents when they go home. That's all for today's class. Please put the headdress gently in the basket. "
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.