Middle school mathematics teaching plan: the conservation of numbers

As a selfless people's teacher, you often need to use lesson plans, which are the basic conditions to ensure the success of teaching and improve the quality of teaching. What formats should I pay attention to when writing lesson plans? The following is my middle school math teaching plan: the conservation of numbers, welcome to read and collect.

Mathematics teaching plan for middle class: number conservation 1 mathematics: review 10.

Activity objectives:

1, which can correctly judge the quantity within 10 independently of the size, shape, color and arrangement of objects.

2. 10 objects can be arranged in different forms.

Activity preparation:

Material preparation:

(1) Situation diagram of rabbits picking mushrooms and three groups of mushroom cards (as shown in the figure).

(2) each group 1 I-shaped nail (30~50 nails of different colors and sizes), each with a foam board.

Material collocation: educational wall chart, homework material exercise.

Activity flow:

1, introduce the situation and review the counting method of numbers within 10.

★ Show a picture of a rabbit picking mushrooms.

★ Introduction: Spring is coming. Little rabbit went to the forest to pick mushrooms. Every rabbit found many mushrooms and was very happy. However, they all said that they found the most mushrooms, and they quarreled. Children, can you tell the rabbits who has more mushrooms? How did you figure it out?

★ Show three groups of big mushroom cards, guide children to observe and count, and talk about their own counting methods.

★ Summary: These mushrooms are large and small, white and black, and arranged vertically and horizontally.

There are rows and piles of you. When you lose, you can count horizontally or vertically. Pay attention to the number one by one in sequence, and do not repeat or miss the number. We counted three groups of mushrooms one by one and knew that they were all the same. Each rabbit finds 10 mushrooms.

2, collective operation, perception of digital conservation within 10.

★ Introduction: Can you use 10 mushroom to make a picture different from the three groups of pictures just now?

★ Guide children to observe the first three groups of mushroom pictures and imagine different arrangements. ★ Guide children to use 10 mushrooms (I-shaped nails) to insert their own designs on the light bubble board at one time, and communicate with their peers which mushrooms have more or less, or the same. Inspire children to prove that the numbers are the same without one-on-one increase or decrease.

★ Summary: No matter how the color, size and arrangement of mushrooms change, their number will never change. 10.

3. Complete the calculation of materials and consolidate the points and conservation knowledge within 10.

4, combined with the collective evaluation of educational wall chart.

Middle school mathematics teaching plan: the conservation of numbers (2) teaching objectives;

1, guide children to eliminate the interference of external factors (color, size, spatial arrangement, spatial distance) and understand the conservation of numbers within five years' experience.

2. Cultivate children's interest in logarithm, thus developing children's thinking and imagination.

Teaching focus:

Let children initially perceive the conservation of numbers.

Teaching difficulties:

Verify the conservation of numbers in different ways.

Teaching preparation:

1, scene performance (same number, different sizes, causing two small animals to quarrel), please ask the children in the middle class to perform.

2. Courseware (making flowers of different sizes, colors and arrangements)

3. Operating material: triangle (2 colors and sizes) made of cardboard.

Teaching process:

First, the topic, the use of situational performance

(Ask two children in the middle class to perform and describe. There are two small animals and two laundry baskets, one big and one small. There were a lot of things in the laundry basket, and then there was an argument. )

Question: Why do you think the children quarrel? Let the teacher see what can be done to help.

By introducing the conservation of numbers, the teacher can draw the conclusion that although the laundry list is different in size, the number of things contained in it is the same. )

Second, the number of learning is conserved.

1, watch the courseware

(1), show two flowers of different colors for children to observe. What is the difference? Count whether the numbers are the same.

Summary: The colors of the flowers just now are different, but the number is equal, all five.

(2) Show two pictures with different sizes for children to observe first. Question: How many big ones are there? How many small flowers are there? Besides the color, where else is the same?

Summary: a big number is the same as a small number, both are 5, so it doesn't matter if the numbers of things are different.

(3) Show four pictures arranged in different lines for children to observe. What's their difference? Where is it the same?

Summary: Although they queue in different ways, their number is still the same, five.

Third, children's operation

(1), the teacher told the children how to operate, each child can only take five graphics babies to form different shapes of graphics.

(2) Please choose a good one from each group and show it to the children before the projection. Let him speak for himself. (one's own plan)

Fourth, the teacher summed up

The representatives selected by the four groups of children just now are all great, and they are all displayed in different ways. In fact, there are many things in our life with different colors and sizes, but the quantity is the same. Let's take you to them.

Middle school mathematics lesson plan courseware: the conservation of numbers Part III Activity objectives;

1, learn to count backwards and forwards, learn to count backwards and forwards.

2. Perceive the law of reciprocal and ordinal number in the game and develop children's thinking development.

3. Emotionally, children can take the initiative to learn in a happy mood, experience the happiness of mathematics activities and feel the fun of collective activities.

Focus of activities:

Understand the inherent law of ordinal number and reciprocal.

Activity difficulty:

Learn to count backwards and backwards.

Activity preparation:

1, courseware

2, a children's operation board.

Activity flow:

First, learn math from three little pigs.

1. Today, three little pigs are going to tell the children an interesting story that happened when three brothers were playing hide-and-seek.

Love. (The teacher tells the story of "three little pigs playing hide and seek" with the courseware.)

2. Overview of interesting mathematical events in the story, the boss will not count and count down within 10.

Not to mention ordinal numbers and reciprocal numbers within 10.

Second, please cooperate with the courseware Counting Apples to learn the ordinal number and reciprocal within 10. Teacher's summary: ordinal number is the number starting from the smallest number, for example, the first number is 1, and the method of ordinal number is 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and the reciprocal is the number from the largest number to the smallest number, for example, the first number is/kloc.

3. Appreciate the nursery rhyme "Let's Count Houses Together", and consolidate what you have learned by appreciating and singing nursery rhymes.

Fourth, children's operation activities.

1, mother pig called the pig to go home for dinner, but a bad fox squatted by the pig's garden and wanted to eat the three brothers. Mother pig has arranged a maze of roads in the garden, so she must go the right way.

Go home. Does the road on the right represent10,9,8,7 according to the reciprocal method? Please connect all the numbers with a pen according to the countdown method to help the pig go home.

2, children's operation, teacher tour guidance.

3. Praise the children who finish quickly and well.

Verb (abbreviation for verb) game activity.

Flop solitaire game: The teacher opens a card (such as red 6) by counting backwards, and the children holding the red number 6 should immediately stand up and say "6" loudly, while the children holding the red numbers "5", "4", "3", "2" and "1" are connected in turn and asked to say their numbers loudly.

Sixth, the application of ordinal reciprocal in life.

1, the number sequence displayed when the elevator goes up and down the stairs; Traffic lights; Microwave oven, etc.

2. Show the courseware "Countdown to Happy Summer Vacation", let the children count the days before the summer vacation (follow the marked calendar and count with the whole class), and the number is "7" to guide the children to think. Today is over. How many days are left tomorrow? How many days are left the day after tomorrow? How about the day after tomorrow? Let the children understand the application of reciprocal method in calculating important days.

Seven, the end

The teacher drew a "hopscotch" grid in the class activity hall, and the children can play "hopscotch" together by counting back and forth after returning to class.

Middle school mathematics teaching plan: the conservation of numbers Chapter IV I. Activity objectives

1, guide children to eliminate the interference of external factors (color, size, spatial arrangement, spatial distance), and understand and experience the conservation of numbers within 5.

2. Cultivate children's interest in logarithm, thus developing children's thinking and imagination.

Second, the activity preparation:

1, live performance (the same number, different sizes, causing two small animals to quarrel), please ask the children in the middle class to perform.

2. Courseware (making flowers of different sizes, colors and arrangements) 3. Operation material: triangle made of cardboard (2 colors and sizes).

Third, the activity process:

(A) live performances, introducing topics

Please ask two children in the middle class to perform: two small animals are carrying two baskets, one big and one small, which contain the same number of building blocks, arguing that they have too many things. Question: Children, how do you think they quarreled? Let's go and have a look. What can we do for you? (introducing the conservation of numbers, the teacher concluded that although the size of the laundry list is different, the number of things contained in it is the same. )

(2) Conservation of learning numbers

1. Look at the courseware: Draw pictures of flowers with different sizes, let the children observe them first, and ask: How many big flowers are there? How many small flowers are there? Besides the color, where else is the same? Summary: These flowers vary in size, but the number is equal, all five. So see if the number of things is the same, regardless of size.

2. Show four pictures arranged in different lines for children to observe. What's their difference? Where is it the same?

Summary: Although they queue in different ways, their number is still the same, five.

(3) Children's operation

(1) Please take out five figures for each child to form different shapes.

(2) Please choose a child from each group and show it to the children before the projection, so that they can talk about their plans. )

Teacher's summary: Just now, four children have chosen to demonstrate their arranged figures in different ways. There are many things in our life, with different colors and sizes, but the quantity is the same. Let's take you to them.

Middle School Mathematics Teaching Plan: Conservation of Numbers Part V Design Ideas

Recently, I found that the children in my class were very interested in the cartoons of the Miao family in Mi Miao, and the question mark of the Miao family in Mi Miao attracted the children's attention. Children's active learning comes from their own interests. So, I designed the math activity "Conservation of Numbers (within 10)" and created the scene of Mickey Temple House, so as to enjoy the animals performing dances in Mickey Temple House during the whole activity. In order to avoid the dullness of traditional mathematics activities, I organically integrate music and games into mathematics activities to make boring mathematics "move"; At the same time, I also boldly tried to let children record with simple symbols. In this way, children feel the conservation of numbers from all aspects of design and experience the importance and interest of mathematics.

Activity objectives:

1. It is preliminarily perceived that the number of items with the same amount does not change with the change of the size, color, type and arrangement shape of the physical objects, and the number of items within 10 is accurately counted.

2. Interesting phenomenon of empirical number conservation.

3, gradually establish self-confidence and creative consciousness.

Activity preparation:

1, preparation of knowledge and experience: children learn the conservation of numbers within 5, children learn to recite spells and play the game of "Ten Indian Children".

2. Preparation of teaching AIDS: Mickey Toy 1, several magnetic teaching AIDS (rabbit back, fish back, Mickey Mouse back 1, 5 rabbits, 7 fish, Mickey Mouse 10).

3. Environment creation: a wonderful house decorated as a small stage.

4. Children's operating tools, recording paper, pencils and trays, 45 copies each.

5.4 background music.

Activity flow:

First, go to Mickey's house to play import activities.

The teacher showed Mickey Mouse plush toys and introduced activities: "Hello, my name is Mickey. Do you want to play in my Miaomiao room? "

Teacher: "What spell should I say when I enter Miaomiao Palace?"

The children recited a spell and the teacher uncovered a wonderful house covered with cloth. )

Second, play games-"guess the shadow" to stimulate children's interest in learning.

Teacher: There are three kinds of small animals in Miaomiao's home. Who are they? This is their back. Let's guess.

Third, the interesting phenomenon of the conservation of empirical numbers.

By watching animals perform dances in Miaomiao's house, we know that the number of equivalent items does not change with the size, color, type and arrangement shape of the items, and we have experienced an interesting phenomenon of quantity conservation.

Teacher: Small animals should perform programs for children, and children should pay attention to what changes have taken place in their formation. children

(1) Enjoy the first program "Rabbit Dance" (Review Protection 5)

1. In the accompaniment of the music Rabbit Dance, the teacher showed five rabbits with different clothes and different dynamics.

Question: ① Are all these rabbits the same? What's different? "

② "A * * *, how many rabbits are there?"

2. With the music of rabbit dance, the teacher operated the magnetic teaching AIDS of five rabbits and performed the dance on the stage of Miaomiao House. The music stopped as soon as the formation changed.

Question: ① What happened to the formation of rabbits?

(2) Do children count how many rabbits there are now, as many as before?

(3) Please 1 children record the changes of formation during the rabbit performance on the big record card, and guide the whole class to verify whether the children's records are correct.

3. The teacher recorded the formation changes of five rabbits on the rabbit dance record card to guide the children to experience the interesting phenomenon of 5 conservation?

The teacher concluded: No matter how the formation of the five rabbits changes, the five rabbits are still five and will not increase or decrease.

(2) Enjoy the second program "Ballet in the Water" (Perception of new knowledge points: Conservation 7)

1. Accompanied by the music "Four Little Swan", the teacher showed seven fishes of different sizes, colors and shapes one by one.

Question: ① What's the difference between these fish?

② "How many fish are there in the program?"

2. In the accompaniment music of Four Little Swan, the teacher operated seven fish to perform underwater ballet. The music stopped as soon as the formation changed.

Question: ① Has the fish formation changed now?

(2) How many fish are dancing now? Is it as much as before?

③ Please 1 children record the formation changes of this fish performance on the big record card of Underwater Ballet, and guide the whole class to verify whether the children's records are correct.

3. The teacher recorded the changes of 7 fish formations on the big record card of "Underwater Ballet", and guided the children to experience the interesting phenomenon of 7 conservation.

The teacher concluded: Although the faces, sizes and shapes of the seven fishes are different, the total number will not change no matter how the formation changes. Seven fish or seven fish?

(3) Enjoy the third program "Mickey Mouse Chen Wenjing" (new knowledge points are 10).

1. In the accompaniment of the music Chen Wenjing, the teacher showed: 10 Mickey Mouse with different gender, size and dress.

Question: ① What's the difference between these Mickey Mouse?

(2) "How many Mickey Mouse are dancing?"

2. In the dance accompaniment of Chen Wenjing Cha, the teacher operated 10 Mickey Mouse to perform Mickey Mouse Chen Wenjing when the music stopped after changing a formation.

Question: ① Has the formation of Mickey Mouse changed?

(2) "Let's count how many Mickey Mouse are performing after changing the formation. As much as before? "

③ Please 1 children record the changes of formation during Mickey Mouse's performance on Mickey Mouse Chen Wenjing's big record card, and guide the whole class to verify whether the children's records are correct.

3. The teacher recorded the formation changes of 10 Mickey Mouse on Mickey Mouse Chen Wenjing, and guided the children to experience the interesting phenomenon of 10 conservation.

The teacher concluded: No matter what formation 10 Mickey Mouse is in, it is still 10 Mickey Mouse.

Fourth, game activities-"Ten Indian children"

Teacher: When the child counts to three, close his eyes and open them. How many children should be invited out to play games at a time?

Five, children's operation

1. According to the instructions of different songs, the children go to their seats with operation learning tools in groups.

2, play light music, children quietly operate learning tools in groups, and record the operation results on the recording paper.

The first group of learning tools: rabbits of different shapes

The second group of learning tools: small fish of different colors

The third group of school tools: stars of different colors

Promotion activities of intransitive verbs

Finish the exercise book.

Attachment: Record Card

Attachment: How to play the game "Ten Indian Children"

Please invite 1 to be the team leader. In the oratorio song Ten Indian Children, the group leader invited nine children and read the mantra of "I change, I change, I change". The whole group of children cooperate freely and design actions in combination. After changing the formation, the teacher guided other children to verify whether the numbers invited by the team leader were correct. If it is wrong, they should jump 10 times. If the venue permits, several groups can be carried out at the same time.

Comments of teaching and research group;

The design of this activity is unique and novel, which can organically integrate dynamic music into boring math activities. Activities can fully mobilize children's enthusiasm and initiative and promote children's active learning and exploration. Teacher-child interaction is good and children's classroom routines are good. In the process of activities, we can pay attention to going from shallow to deep, closely following the activity center, and step by step, so that children can play in school and in middle school. The use of record cards can make children try to express the number and arrangement of objects with symbols, thus cultivating children's good thinking habits from an early age and effectively helping them experience the interesting phenomenon of quantity conservation. In the activity, the teacher can summarize and help the children to sort out the knowledge points in time, and grasp the knowledge points at the height that the children can jump, so as to effectively achieve the preset goals.

Middle school classroom mathematics teaching plan: the conservation of numbers Chapter VI Design intention;

I have a certain understanding of the formation of middle school students' logarithm. Therefore, we designed this activity to teach children in the form of storytelling, combining audio and video to bring them into the fairy tale world, which not only stimulated children's interest in learning mathematics, socialized them, but also made them perceive the same number of objects, no matter how the color, shape, name and arrangement changed, the number remained unchanged. In addition, in the part of children's operation and practice, we use the computer as a learning tool for children, so that children can further perceive the number conservation within 6 in the process of playing games, and achieve the goal of learning mathematics easily in playing.

Activity objectives:

(1) Let children perceive the same number of objects through activities, no matter how the color, shape, name and arrangement change, the number remains the same.

(2) Stimulate children's interest in learning mathematics through audio-visual combination and playing middle school.

(3) Socialization education for children to cultivate children's feelings of caring for others.

(4) Cultivate children's comparative judgment ability.

(5) Develop children's logical thinking ability.

Activity preparation:

Multimedia courseware, big screen, a computer for each child, music: With You.

Activity flow:

(1) Introduction before the event

Children, I want to tell a story. do you want to hear it ? Let's listen to what is said in the story!

(2) During the activity.

1, show courseware 1 (rabbit house, white rabbit, little gray rabbit)

Mother Rabbit has two children, one is Xiaobai and the other is Xiao Hui. One day, Mother Rabbit was ill. "What can I do?" I'm worried about Xiao Lei. They said that they should find some nutritious and delicious food to supplement their mother's body and let her get better as soon as possible! So they went out with baskets.

2. Show courseware 2 (red and yellow rows of mushrooms with the same number and different lengths, 5 each, white and gray)

They walked and saw many fresh mushrooms growing on the grass. So they all picked some mushrooms. Please compare, Xiaobai and Xiao Xue who picked more mushrooms, who picked less mushrooms, or the same number? Why? (If the child can't answer, guide the child to count)

Teacher's summary: Although these two rows of mushrooms are different in color and arranged in a long row and a short row, they are the same because they are all five mushrooms.

3. Show courseware 3 (Different sizes of red and white radishes have the same number of ectopic, small white and small gray)

They came to the radish field again. The radish in the field is watery and delicious! Xiaobai pulled out many white radishes and Xiao Xue pulled out many carrots. Let the children compare, Xiao Bai and Xiao Hui, who picked more radishes and who picked less radishes, or just as much? Why?

The teacher concluded: Although the colors of radishes are different, the arrangement forms and sizes are also different, there are six radishes out of six.

4. Show white and gray courseware 4 (an apple tree and a pear tree with different sizes and arrangements, white and gray)

"Brother, brother, you see, there are two fruit trees in front. Do you say there are more apples or pears? " Gray can't answer the questions raised by Xiaobai. He asked the children to help him. (The child answers)

The teacher concluded: Although the arrangement and size of apples and pears are different, there are as many as six.

5. Show Courseware 5 (The grass is full of flowers, white and gray)

Xiao Bai and Xiao Xue are carrying a basket full of food, ready to go home. They saw colorful flowers on the road. "wow! It's beautiful. Send some flowers to my mother. My mother must be very happy! " So they picked some flowers.

6. Show courseware 6 (white and red flowers, gray and yellow flowers)

Please compare the children. Xiao Bai and Xiao Xue, who picked more flowers, who picked less flowers, or the same amount? Why?

Teacher's summary: Although the arrangement forms and sizes of safflower and yellow flower are different, there are as many as six.

7. Show Courseware 7 (Mother Rabbit, Little White, Little Gray)

Xiao Bai and Xiao Xue went home happily. Mother rabbit knows that the child cares about herself and loves herself, and she is so happy that she is sick.

Sing "With You" to the music, and show Mother Rabbit, Xiaobai and Xiao Hui dancing in Courseware 7.

The teacher concluded: Son, have you ever cared about others in your life? The teacher believes that as long as you have others in your heart and think of others everywhere, you will certainly become a good boy like Xiaobai and Gray!

Extended activities:

Do computer operation exercises on the computer.

The teacher demonstrated a computer operation problem and the method of playing games. Children can operate on the computer in an orderly way, and teachers can tour to guide.