The activity goal of the kindergarten teaching plan "Square Equal Division" 1.
1. Understand the meaning of bisection and learn the method of bisection.
2. Explore different ways of dividing graphics by operation, and experience inclusive and equal relations in the division.
3. Explore the equal division of different graphics.
Activities to be prepared
1. courseware-find the expanded diagram
2. Some square colored paper, some operation learning tools, some chessboards, recording paper, scissors, pencils and hand puppets.
Teaching tool picture
Activity process
First, scene import
1. Show your puppet: Who do you think is here? (bear)
Perform with a puppet
Question: Why is Little Bear unhappy today? Is there any trouble?
Bear: I had breakfast this morning. I found there was only one piece of bread, but I wanted to share it with Bear.
Children, please help me think about what I should do.
3. Teacher: Who has a good idea?
Just divide the bread into two parts! )
4. Bear: But there will be big and small after parting. What should I do?
5. The teacher shows the square colored paper.
Question: What shape is the slice of bread? (Square. )
Teacher: Then let's use square paper instead of bread to help the bear divide it into two pieces of the same size!
Second, provide children with square paper and scissors for them to operate.
1. Give children a chance to try, verify their own ideas, and try various dichotomies without limit.
The method of cutting with scissors is convenient for children to verify whether the two parts are equal.
2. Teacher's summary.
(1) What shape did you divide the square into? How do you divide it?
(2) How many ways are there? (diagonal and reverse folding)
(3) How to prove that the two pieces are the same size? (one-on-one)
(4) How can we divide talents into the same size?
(5) Teachers and children sum up together:
As long as you find the center line, you can divide one into two equal-sized ones. Further guide children to master the key points of bisection.
Third, use school tools to further explore.
1. Teacher: You used two methods. Is there any other way?
2. Ask children to try with school tools, and accurately find the center lines of different shapes, and explore testing methods.
3. Group children and guide them to record and test.
4. Display the list of children's homework.
Let the children talk about how to divide it equally and how to know that it is the same size.
Ask children to introduce innovations to other children and show different ways to test equality.
The design intention of "Square Equivalence" 2, a teaching plan for large classes in kindergarten;
According to the problem of dividing children's lives equally, for example, there are 10 small tomatoes left at noon, and two children eat them, so let them divide them by themselves, half for each; It was the children who distributed papers during the activities in the art district and initiated this activity.
Activity objectives:
1, cognitive goal: understand the meaning of dichotomy and learn dichotomy.
2. Operation goal: Explore different ways to divide the graph equally through operation, and experience the inclusive relationship and equal relationship in the equal division.
3. Ability goal: explore and divide different graphics equally.
Divergent point: divide the figure equally with different bisectors.
Activity preparation: some square colored paper, some operation learning tools, some chessboards, record sheets, scissors, pencils and hand dolls.
Activity flow:
(1) Average distribution figure
1, on-site introduction. Combining the age characteristics of large-class children, creating this problem situation can not only attract children to participate in activities, but also show the mathematics of life more vividly and make it easier for children to understand.
(1) Show your puppet: "Who do you think is here?" Child: "It's Sister Pingping."
(2) Performing a puppet, the teacher asked, "Why is Sister Ping unhappy today? Is there any trouble? " Pingping (teacher): "I had breakfast this morning. I found there was only one piece of bread, but I wanted to share it with Yingying. Son, please help me think about what I should do? "
(3) Teacher: "Who has a good idea?" Child: "Just divide the bread into two parts!" " "
(4) Pingping (teacher plays): "But there will be big and small after the points are finished. What should I do? "
(5) The teacher showed a square piece of colored paper and asked, "What shape is this piece of bread?" Children: "Fang." Teacher: "Then we will use square paper instead of bread to help Pingping's sister divide it into two pieces of the same size!" " "
2. Provide children with square paper and scissors and ask them to operate. Give children the opportunity to try and verify their own ideas, and you can try all kinds of dichotomies indefinitely. Cut it open with scissors, so that children can verify whether the two parts are equal.
3. Summary:
(1) Teacher: "What shapes did you divide the square into? How do you divide it? "
(2) Teacher: "There are several ways to divide" (diagonally folded in half)
(3) Teacher: "How to prove that these two pieces are the same size?" (one-on-one)
(4) Teacher: "How can we be as big?"
(5) Teachers and children sum up together: As long as the center line is found, one can be divided into two equally large ones. Further guide children to master the key points of bisection.
(2) Further exploration with learning tools. Only paper is used for dividing, which is caused by the age characteristics of children at this stage. There are only two accurate bisection methods: diagonal and folding. Using learning tools and grasping the characteristics of learning with holes and holes, children can further try to bisect a square with various broken lines as the center line, and the accuracy can be guaranteed. Promoting the development of children's divergent thinking is a variety of methods for children to freely try dichotomy on the basis of clear requirements for dichotomy. This link pays more attention to children's creativity and uniqueness, and it also permeates a truth: there are many ways to solve one thing.
1, teacher: "You used two methods. Is there any other method?"
2. Ask children to try with school tools, and accurately find the center lines of different shapes, and explore inspection methods. Inspection can prove that the two parts have the same size and the inspection method is not single. The purpose of putting the same homework sheet for children as a proofreading board is to record the equal division method and cut the recorded homework sheet for comparison and proof. In addition to this method, we can also compare whether the number of holes in each row on both sides of the bisector is the same.
3, children's grouping operation, teachers look for different center lines and inspection methods for guidance, and guide children to record and test.
4. Summary: Show your child's homework list. Who can tell me how you divide them equally and how you guide them to be the same size? Ask children to introduce innovations to other children and show different ways to test equality. Let children have the opportunity to communicate and show, and encourage children to innovate in combination with the characteristics of collective learning of large class children.