1. Try to distinguish and record the weight of objects by various simple methods, and initially understand the dialectical relationship between weight and size, quantity and matter.
2. Cultivate children's scientific spirit of exploration and dare to practice, and improve their ability to solve problems.
Activity preparation:
1, the child has two or three small objects, a record sheet, an operation sheet and a watercolor pen.
2. Grouping materials: a "balance scale", a disposable transparent water cup, and a number of cowhide tendons, which were transformed from trouser racks.
3. Music tape "Wooden Buckets and Small Wooden Buckets".
Activity flow:
First, the teacher pantomime "Weightlifting", which leads to the topic:
1. What am I doing? How many times? What is the result every time? Why do you think this is?
2. Description: Things and people are divided into light and heavy, and light and heavy are relative and need to be compared. Do you know any more important methods? If there were no scales, would you use other methods instead? If the result of "light and heavy" is recorded on paper, how to express it? What's the simplest way to express it?
Second, children try to compare the weight of objects with various daily materials and record them.
Introduce the operation method and key points of recording:
1, please have a look first, guess the weight of two objects in your basin, and write down the results under the corresponding method column; Then go to the back table and choose one or more materials. Try: Can you compare the weight of objects with it? What was the result? Please also record the results under the corresponding method column; Finally, let's see: Are your comparison results consistent?
2. Children try to compare the weight of the objects in the basin with simple methods such as visual inspection and record them.
3. Reporting and communication:
What materials did you use and how do you compare the weight of objects? Are the results of different methods consistent? What do you think is the problem? Which method do you prefer? Why?
4, operation practice:
Baby seals also want to play seesaw. Please stamp a certain number of seals on both sides according to the balance of the seesaw on the paper.
Third, listen to the music "Big Buckets and Small Buckets", imagine moving heavy or light things and leaving the activity room naturally.
High-quality teaching plan for kindergarten large class mathematics: ordinal number and reciprocal goal
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.
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 the license plate number, 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, 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 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.
High-quality math teaching plan for kindergarten large class: distinguish the goal of single and double numbers;
Learn to distinguish between odd and even numbers by drawing circles and counting activities.
Can correctly judge the odd and even numbers of body organs.
Prepare:
Ten pictures (each picture is drawn irregularly with1-10), a set of1-10 digital cotton wool teaching aid, and a pen.
Every child has a small basket with 5- 10 snowflakes in it.
Everyone has a pencil and a record card.
Process:
1, two or two laps.
-The teacher shows ten dot maps, collectively counts the points on each map, and affixes corresponding digital cards.
-Ask ten children to come up and circle the dots. Please circle the dots together.
-Guide children to observe the pictures drawn in the circle. Are the points in each picture circled? Which pictures are circled? What is the number? What pictures are not circled? What is the number?
Tell children that 1, 3, 5, 7, 9 is singular, and 2, 4, 6, 8, 10 is even.
2. Judge odd and even numbers
-children count the snowflakes in the basket, first count the total, then count two.
Let some children tell whether the total number of snowflakes is odd or even.
—— The child arranges the snowflakes in pairs and verifies his judgment on the odd and even numbers again.
3. Even and odd numbers on the body.
Let the children find out what is singular and what is even on them.
-children observe the number of certain organs on the body and judge whether they are singular or even (for example, one head is singular, two ears are even, five fingers of one hand are singular, and ten fingers of two hands are even, etc.). ).
-Let children record their observations in the form of paintings and explain them to other children.
I carved ten polka dots for fear that children would make mistakes when drawing circles, and then corrected them. In fact, some children did make mistakes in their activities.
The original lesson plan didn't record the end of the activity, I added it myself. After the activity, I felt the effect was good, which consolidated the concept of children's odd and even numbers.