"Surface Area of Cuboids and Cubes" Cuboids and Cubes PPT Courseware 2

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People's Education Press fifth grade mathematics volume 2	pptx	6 MB

"Surface Area of Cuboids and Cubes" Cuboids and Cubes PPT Courseware 2

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Upload Time: 2024-10-02

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"Surface Area of Cuboids and Cubes" Cuboids and Cubes PPT Courseware 2

1. Review old knowledge

(1) Calculate the area of the front of each cuboid.

(2) Calculate the area of the right side of each cuboid.

(3) Calculate the area of the top of each cuboid.

2. Explore new knowledge

A cube ink tank with an edge length of 6.5cm. How many square centimeters of cardboard are needed to make this ink tank?

How many square centimeters of cardboard should be used at least? What is the requirement? Try it yourself!

6.5×6.5×6＝42.25×6＝253.5（cm2）

Answer: At least 253.5cm2 of cardboard is required to make this ink tank.

3. Application of knowledge

The shape of a glass fish tank is a cube with edge length 3dm. How many square decimeters of glass are needed to make this fish tank? (There is no cover on the top of the fish tank.)

Geometry is an important branch of mathematics that stems from practical needs such as land surveying.

The ancient Greek mathematician Euclid's work "Elements" has a profound influence on the history of mathematics development. The book began to be introduced into our country in the early 17th century.

4. Assign homework

Homework: Exercise 6, Question 6 on page 25. Exercise 6, Question 7, page 26.

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For more information about the "Surface Area of Cuboids and Cubes, Surface Areas of Cuboids and Cubes" PPT courseware, please click on the "Surface Areas of Cuboids and Cubes ppt ppt" tab.

"Surface Area of Cuboids and Cubes" Cuboids and Cubes PPT Courseware 6:

"Surface Area of Cuboids and Cubes" Cuboids and Cubes PPT Courseware 6 1. What is the surface area of cuboids and cubes? 2. How to calculate the surface area of cuboid and cube? 3. What are the applications of surface area calculation of cuboid and cube in daily life? ..

"Surface Area of Cuboids and Cubes" Cuboids and Cubes PPT Courseware 5:

"Surface Area of Cuboids and Cubes" Cuboids and Cubes PPT Courseware 5 1. A cuboid has ( ) faces. Generally, each face is ( ). In special cases, there are two faces ( ), and the ( ) of the opposite faces are equal. . 2. A cuboid has ( ) vertices, (..

"Surface Area of Cuboids and Cubes" PPT Courseware 3 on the understanding of cuboids and cubes:

"Surface Area of Cuboids and Cubes" Understanding of Cuboids and Cubes PPT Courseware 3 Teaching Objectives 1. Knowledge Objectives: Through the explanation and observation of examples, further consolidate the characteristics of cuboids and cubes and their side expansion diagrams. 2. Ability goal: be able to calculate long...

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Update Time: 2024-10-02

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"Surface Area of Cuboids and Cubes" Cuboids and Cubes PPT Courseware 2