The sequence of math teaching plans in large classes and the activity goal of countdown 1
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. Cultivate children's spirit of trying.
4. Cultivate children to share the social quality of cooperation with others and care about others' feelings.
Important and difficult activities
Activity focus: understand the internal law of ordinal number and reciprocal.
Activity difficulty: learning reciprocal and inverse numbers.
Activities to be prepared
2 sets of 1, 1—1magnetic digital cards and1directional arrows.
2. Frog 10, some lotus leaves.
3. Two pictures of the same locomotive (difference: different license plates)
4. High-rise model 1, 1— 10, and paste number 1.
5, "Driving a Train" music
Activity process
First, the beginning part:
(1) Teachers introduce themselves to express their joy in meeting new friends.
(2) Teachers introduce frogs and visit frogs' new buildings by talking to attract children's attention and enthusiasm for participating in activities.
(3) Teachers and children play games to pave the way for knowledge.
1. Perceive the relationship greater than 1 less than 1 by clapping games.
2. Relationship between number perception of 1 and number perception of 1: For example, what is the number of1greater than 2? 1 What is the number less than 9?
Second, the basic part:
(1) Teachers guide children to count off, so that children can initially perceive the inherent law of ordinal number and reciprocal, and make a summary: we arrange the last number in order from small to large, which is more than the previous number 1. The number of rows arranged in this way is called ordinal number. Arranged from a large number to a decimal number, the latter number is L less than the previous number, so the number of rows arranged in this way is called reciprocal.
(2) Teachers guide children to observe and perceive from four directions: up, down, left and right. With the change of orientation, the order of numbers will also change.
(3) review and consolidate:
1. The teacher introduces frogs in a magical tone, finds out the differences between frogs, guides children to find that some frogs have no numbers on their chests, and inspires children to fill in numbers according to the rules.
2. The frog wants to play hide-and-seek with the children, and guide the children to practice counting and count backwards from any number.
3. Teachers take a small train to visit the frog's new building, introduce the small train, guide children to observe the changing direction of license plate numbers, and once again perceive that the order of numbers will change due to the change of orientation, and guide children to take the train according to the arrangement law of license plates and report the numbers, so as to experience and perceive the order and countdown in the form of participation.
4. By observing the building, guide the children to practice the number of continuous connections and the number of backward connections. For example, I live in xx on the 5th floor and want to visit xx's house in 1 building. Which floor should he take? ……
5. The teacher guides the children to participate in the game by blessing the frog to move to a new home, and practices the sequential counting and countdown again, such as: "Clap your hands, 123, then count ……" (456), "Clap your hands, 987, then count ……" (654).
Third, the conclusion part.
Expand children's thinking, guide children to recall where there are ordinal numbers and reciprocal numbers in life, and enrich children's life experience.
Activity expansion
Ask the children to go home and seek and consult information with their parents. What other uses do ordinal numbers and reciprocal numbers have? Come and share it again next week.
Activity reflection
After the activity, some children consciously lined up, and asked one person to be the monitor to count in order, and some counted in the form of driving a train, which can show that children are interested in exploring, so our teacher should let go and let the children play and explore by themselves. After all, learning can't be completed only through one or two group activities.
The sequence of large class mathematics teaching plans and the purpose of countdown activities
1, let children master the methods of counting from 1 to 10 and counting from 10 to 1, and further master the order of numbers.
2, let children perceive from 1 to 10, according to the sequence number one more 1, and count down one less 1. Experience the reversibility and transitivity between natural sequences in 10.
3. Develop the agility and logic of children's thinking.
Activities to be prepared
1, staircase, 5 buildings 10 floor, 1- 10 digital card, 12 class diagram, projector, TV.
2. School tools: some exercise papers and pencils; Everyone has a set of books and pens for writing.
Activity process
First, the game: climb the stairs.
Children are free to go up and down the stairs. When they go upstairs, they count down to 1, 2- 10, and when they go downstairs, they count down to 10, 9- 1, so that they can understand what order is and what reciprocal is.
Second, children's exploration activities:
1, give the building a floor number, and then live a corresponding number of small animals according to the number of floor numbers.
The teacher focuses on guiding children to compare the number of small animals and perceive the relationship from 1 to 10, with more orders 1 and less reciprocal 1.
2. Arrange the corresponding numbers on the ladder diagram and practice counting and counting backwards in order.
Third, watch the ladder diagram played by the projector.
In the form of a little monkey climbing stairs: guide children to find that each number is less than the following number 1 when counting backwards, and each number is more than the previous number 1.
Fourth, the game: number solitaire.
Children in pairs, scissors, stones and cloth, count first to see who wins, and then count the children opposite each other according to the number of children counted first.
The ordinal number of large class math teaching plan and the goal of penultimate activity;
1, starting from any number within 10, and starting from ordinal number or reciprocal number, we can perceive the inherent law between numbers.
2. Improve the sensitivity to numbers and experience the importance and fun of numbers.
3. Actively participate in exploration activities and exercise the agility of thinking.
4. Let children understand simple mathematical principles.
5. Cultivate children's interest in calculation and the accuracy and agility of thinking through various sensory training.
Activity preparation:
1, PPT courseware includes: tour bus, license plate is12345; Countdown to traffic lights10 ~1; The elevator goes up and the floor shows1~10; When the elevator goes down, the floor displays10 ~ 6,6 ~1; Picture of prize area; Turn on the car music.
2. Physical teaching AIDS: red and black tickets, caves, jumping circles, plum blossom piles, grass, etc. marked with the numbers 1 ~ 10 respectively. Marked with the number 1 ~ 10, one for each operator.
3. Operation learning tool information: design license plate number.
Activity flow:
First, directly introduce games to stimulate children's interest in activities.
Teacher: Today, the teacher took you to the amusement city. Are you happy?
Second, observe the license plate number and ticket, and perceive and learn the serial number.
Teacher: This is our tour bus. What is the license plate number?
Teacher: You need a ticket to take the bus. The teacher has prepared the tickets. Let's see what the figures are.
Show the red ticket of 1 ~ 10 to guide the children to observe and count.
Summary: Just now, we started counting from decimals, and the following numbers are more than the previous ones 1. This counting method from small to large is called ordinal number.
Show the 1 ~ 10 black ticket and guide the children to observe and count. Question: What is the name of this counting method from small to large? (ordinal number)
Kid, get in the car and sit down.
Third, feel and learn the countdown when you encounter a red light during your journey.
Children imitate driving with driving music.
The first time I met a red light.
Teacher: There are traffic lights ahead. What light is on now? The red light is on. Can we get there? We should obey the traffic rules. The red light is on and stop the car. There is also a digital timer on the display. Let's take a look and count (guiding children to observe, number 10 ~ 1).
Summary: Just now, we started with the big number, and the following numbers are all less than the previous ones 1. This counting method from big to small is called reciprocal.
Teacher: The green light is on, and we move on (children continue to imitate driving to the music of driving).
The second red light.
Teacher: There is a traffic light ahead. What light is on? Can we go over there? How long do we have to wait? Let's count down together (guide the children to observe and count 10 ~ 1).
Teacher: The green light is on. Let's move on.
Fourth, play the amusement city, and further practice the sequence and countdown.
(1) Take the elevator upstairs and practice the 1 ~ 10 sequence.
Teacher: This is the entertainment city. Go to the amusement city on the 10 floor first! How can I get to the 10 floor faster?
The children imitate taking the elevator, and the teacher reminds the children to stand firm and hold on, and the elevator is about to go up. At the same time, guide children to observe the elevator floor display and count out 1 ~ 10.
Teacher: Here we are 10. Let's get on the elevator safely!
(2) In walking, jumping, drilling and climbing, children practice counting backwards or forwards from any number.
1, guide children to observe the venue completely, practice the sequence and count down.
Teacher: So many interesting things in the amusement park are numbered. Look! This is a cave. What's the number on it? (1 ~ 10) This is a jump cycle. What is the number? (10 ~ 1) This is ...
2. Children are free to play in music and further perceive the inherent laws between numbers.
Teacher: Children! You can choose to play freely, but pay attention to safety and give in to each other! When you play, it depends on which number you start from and which numbers you have passed. Go and choose the number you like to play!
3, exchange gameplay.
Teacher: It's time to have a rest in the amusement park. Please rest in the rest area.
Teacher: Did you have a good time? What did you just play? What date did it start? What numbers have you passed?
Children are free to choose to start with any number or count down in music.
Teacher: Besides the two ways of playing from 1 to 10 and counting backwards from 10 to 1, which number can I start with? You can play freely, but please remember that the requirement of this game is to start from any number in chronological order or countdown.
The child will go to the rest area to rest. The teacher summed it up.
5. Take the elevator downstairs and practice the countdown to 10-6.
(1) Play the courseware: Tell everyone a good news. Today is the anniversary of Amusement City 10, and a prize quiz is being held on the 6th floor. Welcome everyone to participate actively.
Teacher: Children, there is a quiz on the sixth floor! Let's take the elevator to the sixth floor quickly. Hang in there, everybody. The elevator is descending (countdown 10 ~ 6).
(2) Expanding experience: the application of ordinal number and reciprocal in life.
Teacher: Sit down, children. The test will begin.
Question: When should ordinal numbers or reciprocal numbers be used in life?
The child discusses before answering, and the teacher guides the child to think. If you answer correctly, you can get a prize.
Question: When do you need ordinal numbers or countdown in your life? Go home and look for it with your parents.
6. Take the elevator downstairs and practice the countdown from 6 to 1.
Teacher: It's getting late. It's time for us to take the elevator downstairs and go home (from 6 to 1).
5. Design the license plate number, and practice the sequence number or countdown one step from any number within 10.
Teacher: There are two cars here, neither of which has a license plate number. Ask children to help design the license plate number. The number must be 5 digits in the sequence or 5 digits at the bottom. What number do you want to design? Think for yourself first, or you can discuss with the children next to you.
(a) distribution of operating materials, children's pattern license plate number.
(2) Let the children tell their companions the license plate number they designed.
(3) End the activity
Teacher: The license plate number is designed. Let's drive home together.
The children imitated music and drove out of the activity room.
Activity reflection:
After the activity, some children consciously lined up, and asked one person to be the monitor to count in order, and some counted in the form of driving a train, which can show that children are interested in exploring, so our teacher should let go and let the children play and explore by themselves. After all, learning can't be completed only through one or two group activities.
Encyclopedia: reciprocal is a mathematical term, and the pinyin is dàoshù. Mathematically, it means that the product of a number x multiplied by it is 1, which is recorded as 1/x, and the process is "multiplication inverse". All numbers except 0 have reciprocal, and the numerator and denominator, in turn, are the reciprocal of 1, and 0 has no reciprocal.
The ordinal number of large class math teaching plan and the goal of penultimate activity;
1, cognitively: learn to count backwards and forwards, learn to count backwards and forwards.
2. Ability: 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:
1.2 sets 1-1magnetic digital card and1directional arrow.
2. Frog 10, some lotus leaves.
3. Two pictures of the same locomotive (difference: different license plates)
Four, high-level model 1, 1- 10 paste quantity 1 set.
Verb (abbreviation for verb) music for driving a train.
Activity flow:
First, the beginning part:
(1) Teachers introduce themselves to express their joy in meeting new friends.
(2) Teachers introduce frogs and visit frogs' new buildings by talking to attract children's attention and enthusiasm for participating in activities.
(3) Teachers and children play games to pave the way for knowledge.
1. Perceive the relationship greater than 1 less than 1 by clapping games.
2. The relationship between 1 more and 1 less in digital perception: for example, how much is 1 more than 2? 1 What is the number less than 9? -
Second, the basic part:
(1) Teachers guide children to count off, so that children can initially perceive the inherent law of ordinal number and reciprocal, and make a summary: we arrange the last number in order from small to large, which is more than the previous number 1. The number of rows arranged in this way is called ordinal number. Arranged from a large number to a decimal number, the latter number is less than the previous number 1, so the number of rows arranged in this way is called reciprocal.
(2) Teachers guide children to observe and perceive from four directions: up, down, left and right. With the change of orientation, the order of numbers will also change.
(3) review and consolidate:
1, the teacher introduced frogs in a magical tone. In order to find out the differences between frogs, the teacher guided the children to find that some frogs have no numbers on their chests and inspired them to fill in the numbers according to the rules.
2. Frog wants to play hide-and-seek with children, and guide them to practice counting, counting backwards from any number.
3. By taking a small train to visit the frog's new building, the teacher introduced the small train to guide the children to observe the changing direction of the license plate number, and once again perceived that the order of the numbers would change due to the change of the direction, and guided the children to take the train according to the arrangement law of the license plate number and report the numbers, so as to experience and perceive the ordinal number and the countdown in the form of participation.
4. By observing the building, guide the children to practice the number of continuous connections and the number of backward connections. For example, if * * who lives on the fifth floor wants to visit * * on the 1 floor, which floor should he take?
5. The teacher guides the children to participate in the game by wishing the frog a new home, and practices the sequential counting and countdown again, such as: "Clap your hands, count, 123, and then count-"(456), "Clap your hands, count, 987, and then count-"(65438).
Third, the last part:
Expand children's thinking, guide children to recall where there are ordinal numbers and reciprocal numbers in life, and enrich children's life experience.
Four. Extension of activities:
Ask the children to go home and seek and consult information with their parents. What other uses do ordinal numbers and reciprocal numbers have? Come and share it again next week.
The ordinal number of large class math teaching plan and the goal of penultimate activity;
1. Learn to count backwards and forwards, learn to count backwards and forwards.
2. The sensing range is from 1 to 10, the sequence number increases 1, and the countdown decreases 1. Experience the reversibility and transitivity between natural sequences in 10.
3. Actively study and experience the happiness of mathematics activities.
Activity preparation:
Stair painting, digital card, frog headdress, lotus leaf digital card.
Activity flow:
1. Train count
Ask the children to sort 1- 10 one by one.
2. Digital ladder
(1) Show the pictures of the stairs and ask the children to match the corresponding numbers with the stairs. After arranging the corresponding numbers on the stairs, practice counting and counting backwards in order.
(2) Little monkey climbing stairs: When guiding children to count backwards, they find that each number is less than the following number 1, and each number is more than the previous number 1.
3. Team game "Send Little Frog Home"
(1) Let some children play the little frog. One of them puts the lotus leaves with numbers written on them on the floor in order or in a countdown way, and sends the little frog home.
(2) The teacher put the lotus leaves in the air, let the children put the empty lotus leaves in order or in reverse order, and let the little frog go home.
Activity expansion
Complete the "Little Rabbit Jumping on the Springboard" on page p24 of the children's book.
The ordinal number of large class math teaching plan and the goal of penultimate activity;
1, knowledge goal: inspire children to find the order of numbers within 10 through their own attempts and know what ordinal numbers and reciprocal numbers are.
2. Ability goal: Perceive the positive-negative relationship between ordinal number increasing by 65,438+0 and reciprocal number decreasing by 65,438+0, understand different counting methods, and experience the reversibility and transitivity of a natural sequence within 65,438+00.
3. Emotional goal: cultivate children's spirit of trying and develop children's agility and logic of thinking; Stimulate children's interest in learning, experience the happiness of mathematics activities and feel the fun of group activities.
4. Develop visual perception and judgment.
5. Guide children to actively interact with materials and experience the fun of mathematics activities.
Focus of activities:
Learn to understand the inherent laws of ordinal numbers and reciprocal numbers.
Activity difficulty:
Reversibility and transitivity between sensory sequences.
Activity preparation:
1, teaching AIDS: teaching wall chart "Squirrel Picking Pine Nuts", animal pictures, some pictures of mushroom house, digital card of 1- 10, projector, TV.
2. Learning tools: one set of point cards and one set of number cards from 1 to 10.
Activity flow:
I. Organizing teaching
The game "clap your hands" (to attract children's attention and consolidate old knowledge)
1, clap your hands as much as you said. For example, if I say X, children: I clap X. (clap your hands x times)
Clap your hands more than you said 1. For example, I said 5, child: I hit 6, and 6 is 1 more than 5. (Clap your hands six times)
3. The number of people applauding is less than the number of people saying 1. For example: I said 5, child: I took 4, and 4 is 1 less than 5. (Clap your hands four times)
Second, stimulate the introduction of interest, arouse children's interest
1. Today, the teacher brought a child to the children. Let's see who it is. Question: Who is in the photo? (Little squirrel) What is it going to do? Counting: How many steps are there from the home of the little squirrel to the pine tree on the top of the mountain? (Grade 10)
Activity: I'll pick pine cones.
(How to learn ordinal numbers and reciprocal numbers)
1, squirrel, this is the first time to pick pinecones on the mountain alone. Oh, I'm afraid I'll get lost So, he thought of a good way, that is, mark the steps with numbers, step on these numbers up the mountain, and then step on the numbers down the mountain when he comes back. Now, would you please ask the children to mark the numbers for him?
Individual children come forward to try. Put the digital card on the corresponding step. (1-2-3-4-5-6-7-8-9-10, just10 steps up the hill. )
2. When I get to the mountain, how can I get down if I go back the same way? ( 10-9-8-7-6-5-4-3-2- 1)
Question: What's the difference between the figures found by the children when they come back and those found when they go? (Inspire children to feel that when we reach the top of the mountain, we start counting from a small number, and the following numbers are all 1 greater than the previous number, while when we go down the mountain, we start counting from a big number, and the following numbers are all 1 less than the previous number. ) The sensing range is from 1 to 10, followed by numbers greater than 1, and the countdown is less than 65438.
Teacher's summary: Establish the correct concepts of ordinal number and reciprocal number, and arrange them in descending order. The latter number is more than the former number 1, so the arranged number is called ordinal number. (The number of children's songs) is arranged in descending order, and the last number is less than the previous number 1, so the number arranged in this way is called reciprocal. (Children singing)
Fourth, hands-on operation: send small animals home
1, show the trial question: build a new house for small animals.
Little squirrel has many friends, including lamb, white rabbit, deer, pig and little squirrel. They are also invited to play at home. They love the squirrel's home, and they all want to have a house like this. They live on the mountain, and they can often play together in the future, so they want to ask their children to help them build their houses, okay? There are requirements for building a house. Every small animal's home should be separated by a certain distance, just 10 step, so that everyone can move up and down.
(1) The teacher demonstrated how to build a house for a lamb by reciprocal method, just 10 steps away from the squirrel's house. Build a house there (please ask the children to come up and put pictures of the house and the lamb on the wall chart)
(2) Children use the same method to help other small animals build new houses in turn. For example, there are 10 steps from lamb's house to rabbit's house, 10 steps from rabbit's house to deer's house, and 10 steps from deer's house to piglet's house. (Let children further master the method of countdown. )
2, the second attempt: true and false "house"
There are many identical houses on the mountain. This time, Coke broke Big Wolf. He thought of a good way to catch small animals. What can he do? That is to tear up all the photos on their houses and build many identical houses, making them all traps. Big Big Wolf wanted to keep the animals from finding their homes, but they fell into his trap. Will small animals be fooled? What good ideas does the child have? Inspire children to teach small animals to count, arrange them in chronological order and countdown order, and find the "real" house. Try to find a home for the small animals yourself.
Step 3 do it yourself
Arrange the counting cards and counting cards within 10 in chronological order and reciprocal order respectively.
Fifth, thinking expansion.
Where can I use ordinal numbers and reciprocal numbers in my life?
Elevator, traffic lights, rocket launch, countdown ... by watching multimedia demonstrations, feel the application of ordinal number and countdown in life.
Activity expansion:
The game "Climbing the stairs". Children are free to go up and down the stairs. They should count to 1, 2- 10 when they go upstairs, and count down to 10, 9- 1 when they go downstairs, so as to consolidate their understanding of what counts in sequence and what counts down.