Mathematics teaching plan for large classes: understanding the moving targets of cubes and cuboids1;
1, know cubes and cuboids, and perceive their characteristics.
2, can use observation and comparison methods to understand the body.
3. Experience the happiness of helping others in activities.
Activity preparation:
All kinds of cubes, cuboid building blocks, toys. Building blocks are scattered behind the child's seat. Please put the toy under the child's chair after the child has cleaned up the house and returned to his seat.
Activity flow:
First, arouse children's interest through short stories.
Teacher: Today, the teacher received a phone call. A few days ago, a strong wind blew down Bunny's house. Little rabbit is in a hurry. what should he do ？ (Children help rabbits build houses)
Second, guide children to observe building materials-building blocks, and know cubes and cuboids.
(A) understanding of building materials
1, Teacher: Let's see what materials are used to build houses. Are all these building blocks the same?
2. Ask each child to take a building block and see and feel what the building block is made of. (Let the children speak freely first, and then ask individual children to answer)
(2) Guide children to count the number of building blocks in their hands.
1, Teacher: Some children's building blocks are rectangular, some children's building blocks are square, and some children's building blocks are rectangular and square. Can you tell me how many numbers are on your building block? (The number of children, the teacher's observation)
Please count the children backwards in different ways to demonstrate the numbers.
All the children counted it in a different way.
(3) Guide children to observe the shape of each face.
1, Teacher: The child is very capable. They all counted six figures on the building blocks. Who can tell me what the six digits on your building block are?
2. Summary: A figure composed of six rectangles or four rectangles and two squares is a cuboid, and a figure composed of six squares with the same size is a cube.
Third, help the rabbit build a house.
1, Teacher: Now, please use these materials to build houses, which should be strong and beautiful. (Children build houses)
2. Visit the house and talk about the shapes of building blocks.
Fourth, transfer your experience and judge the shape of your gift by the characteristics of cubes and cuboids you perceive.
1, Teacher: Children help Bunny. The rabbit is very grateful to you, so I gave each of you a present. Take it out from under your chairs and say, what shape are your gifts?
2. Please come to the front with the cuboid gift and the cuboid gift, and the other children will check whether it is correct.
The expansion of verb (verb's abbreviation) activity
Let the children find out what is also a cube and a cuboid at home in kindergarten and after class, and then tell the children and teachers.
Mathematics teaching plan for large classes: understanding cubes and cuboids II. Mathematics in Big Class: Understanding Cubes and Cubes.
Activity 1: Learn about cubes and cubes.
Activity purpose:
1, you can name cuboids and cubes and know their main features.
2. Further consolidate the understanding of squares and rectangles, and understand the difference between planes and solids.
Activity preparation:
Cuboid, cube building blocks, paper boxes
Square and rectangular cardboard, the area of one side of square and cube is equal, and the area of one side of rectangle and cuboid is equal.
Activity flow:
1, review and consolidate the understanding of squares and rectangles.
Teachers show squares and rectangles respectively, and let children tell their similarities and differences.
2. Show the cuboids and cubes and tell the children the names of cuboids and cubes.
3. Give the children (each group) a cuboid, a cube, a square and a rectangle, and let them play with it at will, touch it, compare it and see what is different and the same.
4. Teachers and children compare and summarize: Counting in sequence, a cuboid has six faces, each face is generally rectangular, and a cube also has six faces, each face is square (compared by overlapping each face of a square and a cube), and its six faces are the same size.
5. Let the children tell which objects they have seen in their lives are cuboids. Which objects are cubes?