"Three-dimensional Graphics in Life" Rich Graphic World PPT Courseware 3

Description

"Three-dimensional Graphics in Life" Rich Graphic World PPT Courseware 3

Recognize points, lines, and surfaces

1. Graphics are composed of points, lines, and surfaces.

2. Point: city on the map, vertex on the geometry;

Lines: roads, railways, rivers on the map, edges on the geometry;

Surface: water surface, blackboard surface, ball surface, bucket side.

Discuss

1. A cube is surrounded by _____ faces, and they are all _____.

2. A cube has ___ vertices, and there are ___ edges passing through each vertex, totaling _____ edges.

summary:

1. Understand points, lines and surfaces.

2. Understand the relationship between points, lines, and surfaces. Points move to form lines, lines move to form surfaces, and surfaces move to form solids.

Operation

1. Corresponding content in exercise books and information books.

2. Use existing materials to fold a pentagonal prism.

Thinking questions

There is a rectangle with a length of 4 cm and a width of 3 cm. If you rotate it around the straight line where one side of it is, what is the volume of the cylinder?

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Update Time: 2024-09-18

This template belongs to Mathematics courseware Beijing Normal University seventh grade first volume mathematics industry PPT template

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