"Understanding of Cuboids" Cuboid PPT Courseware 3

Description

"Understanding of Cuboids" Cuboid PPT Courseware 3

teaching objectives

1. Through observation, classification, operation, discussion and other activities, learn about the cuboid and the names of its parts.

2. Through the process of observation, operation and induction, discover the characteristics of the cuboid and be able to use the characteristics of the cuboid to solve some simple problems.

3. Develop spatial concepts through specific operational activities.

Observe the frame of the cuboid and discuss: How can the 12 edges of the cuboid be grouped? How many groups are they divided into?

The three edges that intersect at the same vertex are called the length, width, and height of the cuboid.

In fact, the length, width, and height of the cuboid are not fixed. Generally speaking, the longer edge on the base is called length, the shorter edge is called width, and the edge perpendicular to the base is called height.

discuss:

1. How many faces does a cube have? What are its characteristics?

2. How many edges does a cube have? What are its characteristics?

3.How many vertices are there in the cube?

fill in the blank:

1. The ____ where two faces intersect is called an edge; the point where three edges intersect is called _______.

2. A cuboid has ___ faces, ___ edges, and ___ vertices.

Take a test:

1. Use iron wire to weld it into a rectangular frame that is 20 cm long, 15 cm wide, and 10 cm high. How many centimeters of iron wire are needed at least?

2. The sum of the edge lengths of a cube is 24 decimeters. What is its edge length in centimeters?

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For more information about the "Understanding of Cuboids and Cuboids" PPT courseware, please click on the "Understanding of Cuboids and Cuboids" ppt tag.

"Understanding of Cuboids" Cuboid PPT Courseware 2:

"Understanding of Cuboids" Cuboid PPT Courseware 2 Length = Width = Height A cube is a cuboid with equal length, width and height. It is a special cuboid. Fill in the blanks A cuboid has ( ) faces. Each face is ( ) and there may be 2 opposite faces ( ) that are opposite..

"Understanding of Cuboids" Cuboid PPT Courseware:

"Understanding of Cuboids" Cuboid PPT Courseware Let's talk about it. In your life, what other objects have you seen that are shaped like a cuboid or a cube? What are the characteristics of cuboids and cubes? Please find it and fill it in the form below. Fill in the blanks A cuboid has ( ) faces. Every..

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Update Time: 2024-10-01

This template belongs to Mathematics courseware Beijing Normal University fifth grade mathematics volume 2 industry PPT template

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