"Geometric Figures" Preliminary PPT Courseware for Graphic Understanding 2

Description

"Geometric Figures" Preliminary PPT Courseware for Graphic Understanding 2

We collectively refer to various figures abstracted from real objects as geometric figures.

Some geometric figures do not have all parts in the same plane. These figures are three-dimensional figures.

Compare and guess

After unfolding the following three-dimensional figure, guess what its flat plan view is.

Do it, think about it

Use scissors to unfold the cube carton on the table along the edges in any way. What different unfolded images can you get? Compare which group's expanded diagram is more distinctive.

What did you gain from this lesson?

1. Learned to observe three-dimensional figures from different directions.

2. Learned the plane expansion diagrams of simple geometric objects (such as prisms, cubes, etc.) and knew that different expansion diagrams would be obtained by expanding them in different ways.

3. Learned to practice and cooperate with classmates.

4. Friendly reminder: Not all three-dimensional figures have flat expansions, such as spheres.

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Update Time: 2024-10-19

This template belongs to Mathematics courseware People's Education Press Seventh Grade Mathematics Volume 1 industry PPT template

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