Teaching plan of bisecting and quartering large classes

As an excellent educator, it is often necessary to prepare teaching plans, which are the link and bridge between teaching materials and syllabus and classroom teaching. So what problems should we pay attention to when writing lesson plans? The following are the teaching plans for bisecting and quartering large classes that I have compiled. Welcome to read and collect. Teaching plan of bisecting and quartering large class 1

Activity goal

1. Guide children to learn to divide objects into two parts and four parts with the help of four seasons garden design activities.

2. Explore ways to divide all kinds of figures into four parts to stimulate children's interest in mathematics.

3. Experience the gardener's hard work through the activities of planting flowers, and cultivate children's awareness of greening.

4. Let children know simple mathematics.

5. Improve the ability of logical reasoning and form a good habit of doing things in an orderly way.

Activity preparation

A picture of a square flower bed, and a number of flower bed cards in various shapes such as rectangle, circle and ellipse; Scissors; Glue

Activity process

(1) Introduction of pictures, which leads to the topic

1. Show the typical flower pictures of winter jasmine, lotus, chrysanthemum and plum blossom.

teacher: here are some flowers in a specific season. can you tell me in which season they bloom?

2. Under the teacher's demonstration, children draw these four kinds of flowers on white paper and cut them out.

(2) Example operation, understanding knowledge

1. Show the square flower bed.

Teacher: A small flower bed is to be built in Mr. Pei's small yard to plant the four kinds of flowers just now. Please help me think of a way to plant four kinds of flowers in this flower bed, and let each flower occupy the same amount of space. (children speak freely)

2. Teacher's summary: Only by dividing the square flower bed into four pieces with the same size can we ensure that the flowers in all seasons occupy the same space.

3. Teacher: Look at this square flower bed. How can we divide it into four pieces with the same size on average? How do you divide it? Are there any other children who have different points?

4. teacher's summary: by folding the square in half, you can get four flower beds with the same shape and size.

5. teacher: children, let's think about it. where have you used the method of folding in half in our life? (organize skipping rope, folding handkerchiefs, etc.)

(3) Expand the problem and sublimate the classroom

1. Show various shapes of paper (rectangle, circle, ellipse). Take children to know some of these figures again.

2. Teacher: There are many flower beds of various shapes in the garden, all of which should be planted with flowers of four seasons. Please try to divide the flower beds into four different sizes.

3. Assign tasks, and children can choose a flower bed with their favorite shape from the three kinds of figures for equal activities.

4. Complete the task and exchange the results of the challenge:

(1) Who is assigned the rectangular flower bed? How do you divide it? Is there any other way?

(2) How can a circular flower bed be divided into four pieces on average? How did you divide it?

(3) which shape is the same as the oval flower bed?

5. Children paste the flowers drawn at the beginning of the class on the flower bed.

(4) Extended activities

Think about it. Can a triangular flower bed be divided into four flower beds of the same size? How to divide it?

activity reflection:

in today's math teaching, I prepared some figures (squares, triangles, circles, rectangles, etc.). I invite children to use their own brains to divide the circle into two parts first, and the two parts should be the same size. Arousing children's interest, interest is the best teacher for children to learn. Only in this way can we effectively interact with children in teaching. Children are very willing to try, let them do it themselves, and let them concentrate on how to divide objects into two parts, and also try various methods boldly. However, children are unfamiliar with the word "bisection", which needs the help of teachers to better understand. Through this link, children's interest in learning has been improved, and children's mathematics learning has become a voluntary and happy thing. It also makes children concentrate their thoughts and begin to study how to divide them into two parts. After studying bisection, the concept of division has been initially formed. The next four parts will be easier for children to master.

The next step of "dividing the cake" is to ask the children to divide it into four equal parts. This material is very good, which makes children realize that many scenes in life are full of mathematical knowledge, so that children can take the initiative to learn independently, and can appreciate the fun of learning.

After the whole activity, children gradually realize that it is an effective method to use mathematical knowledge to solve practical problems. Over time, children will voluntarily think about problems in real life from the perspective of mathematics, and then solve problems, that is, use mathematical knowledge to solve problems in real life. I have gained a lot through this activity. As a teacher, I should pay more attention to the importance of mathematics in teaching.

encyclopedia: in elementary geometry, bisection refers to the symmetrical and equivalent division of geometric figures, where there are both lines and faces. In order to achieve bisection, the area is divided into many corresponding graphics, mainly axisymmetric graphics. Two-way and four-way large class teaching plan 2

1. Activity objectives:

1. Guide children to learn to divide an object into two or four equal parts.

2. Explore a variety of methods of object bisection to stimulate children's interest in bisection.

3. Develop children's observation ability and comparison ability.

second, the focus of the activity:

through the operation to guide children to explore a variety of methods of object division.

III. Activity preparation:

Clown heads, ropes, scissors, circles, rectangles, squares and paper clips.

IV. Activity process:

1. Introduce the topic by magic.

Today, a clown came to our class. Now, would you please ask the clown to perform magic tricks for us?

2. The teacher shows a rope.

look, children, what is this? How many ropes are there? (One,,,,,) Do children want to learn from clowns and do magic tricks?

(1) Ask individual children to perform magic tricks to change one rope into two ropes with the same length.

(2) Ask individual children to perform magic tricks, and change one rope into four ropes with the same length. And tell me how you got here. How do you know they are the same length?

3. The teacher continues to show round, square and rectangular cookies by magic, and the teacher demonstrates the bisection of the circle. Ask individual children to demonstrate the quartering.

4. Compare, are the divided parts the same size, and which is bigger than the original figure or each divided part? Which is smaller?

5, children's operation, please explore a variety of different methods of rectangular bisection and quartering.

6. Teacher's summary.

V. Activity Extension

Game: Selling Biscuits in Two and Four Classes 3

I. Activity Objectives

1. Guide children to learn to divide objects into two and four parts with the help of the four seasons garden design activities.

2. Explore ways to divide all kinds of figures into four parts to stimulate children's interest in mathematics.

3. Experience the gardener's hard work through the activities of planting flowers, and cultivate children's awareness of greening.

II. Activity preparation

A picture of a square flower bed, and a number of flower bed cards in various shapes such as rectangle, circle and ellipse; Scissors; Glue

III. Activity process

(1) Introduction of pictures, which leads to the topic

1. Show pictures of typical flowers in the four seasons of winter jasmine, lotus, chrysanthemum and plum blossom.

teacher: here are some flowers in a specific season. can you tell me in which season they bloom?

2. Under the teacher's demonstration, children draw these four kinds of flowers on white paper and cut them out.

(2) Example operation, understanding knowledge

1. Show the square flower bed.

Teacher: A small flower bed is to be built in Mr. Pei's small yard to plant the four kinds of flowers just now. Please help me think of a way to plant four kinds of flowers in this flower bed, and let each flower occupy the same amount of space. (children speak freely)

2. Teacher: Only by dividing the square flower bed into four pieces with the same size can we ensure that the flowers in all seasons occupy the same space.

3. Teacher: Look at this square flower bed. How can we divide it into four pieces with the same size on average? How do you divide it? Are there any other children who have different points?

4. Teacher: By folding the square in half, first divide it in half, and then fold it in half, and you can get four flower beds with the same shape and size.

5. teacher: children, let's think about it. in our life, where have you used the method of folding in half? (Skipping rope, folding handkerchief, etc.)

(3) Expanding the problem and subliming the classroom

1. Show various shapes of paper (rectangle, circle, ellipse). Take children to know some of these figures again.

2. Teacher: There are many flower beds of various shapes in the garden, all of which should be planted with flowers of four seasons. Please try to divide the flower beds into four different sizes.

3. Assign tasks, and children can choose a flower bed with their favorite shape from the three kinds of figures for equal activities.

4. Complete the task and exchange the results of the challenge:

(1) Who is assigned the rectangular flower bed? How do you divide it? Is there any other way?

(2) How can a circular flower bed be divided into four pieces on average? How did you divide it?

(3) which shape is the same as the oval flower bed?

5. Children paste the flowers drawn at the beginning of the class on the flower bed.

(4) Extended activities

Think about it, can a triangular flower bed be divided into four flower beds of the same size? How to divide it? Two-part and four-part large class teaching plan 4

1. Design intention

This activity is based on the "Guidelines for Kindergarten Education", which points out: "Guide children to be interested in the phenomena of numbers, quantities, shapes, objects, space and time in the surrounding environment. To this end, I let children divide objects equally through games, operations and explorations. At the same time, using the supporting teaching, we can guide the children to deepen gradually in the process of learning and exploration, and support and encourage the children to be independent, so as to accomplish the activity by drawing inferences from others.

Second, the activity goal:

1. Guide children to learn to divide an object into two or four equal parts.

2. Explore a variety of methods of object bisection to stimulate children's interest in bisection.

3. Develop children's observation ability and comparison ability.

second, the focus of the activity:

through the operation to guide children to explore a variety of methods of object division.

Fourth, activity preparation:

A number of clown heads, ropes, scissors, circles, rectangles, squares and paper clips.

V. Activity process:

1. Introduce the topic by magic.

Today, a clown came to our class. Now, would you please ask the clown to perform magic tricks for us?

2. The teacher shows a rope.

look, children, what is this? How many ropes are there? (One .....) Do children want to do magic tricks like clowns?

(1) Ask individual children to perform magic tricks to change one rope into two ropes with the same length.

(2) Ask individual children to perform magic tricks, and change one rope into four ropes with the same length. And tell me how you got here. How do you know they are the same length?

3. The teacher continues to show round, square and rectangular cookies by magic, and the teacher demonstrates the bisection of the circle. Ask individual children to demonstrate the quartering.

4. Compare, are the divided parts the same size, and which is bigger than the original figure or each divided part? Which is smaller?

5, children's operation, please explore a variety of different methods of rectangular bisection and quartering.

6. Teacher's summary.