| Category | Format | Size |
|---|---|---|
| Beijing Normal University seventh grade first volume mathematics | pptx | 6 MB |
"Expand and Fold" Rich Graphic World PPT Courseware 3
Description
"Expand and Fold" Rich Graphic World PPT Courseware 3
Think about it: The following figures are expanded diagrams of some common geometric entities. Can you correctly name the names of these geometric entities?
question
1. Since they are all cubes, why are the cut-out plane figures different?
2. To unfold a cube into a plane figure, how many edges must it be cut along?
Think about it, do it
Cut the surface of a cube along some edges and develop it into a plane figure. Can you get the following plane figures?
As shown in the picture is an unfolded view of a cube carton. Think about it and try again. Which side is opposite side A, side B, and side C?
The picture is an expanded view of a cube carton. Please fill in 1, 2, 3, -1, -2, -3 in the 6 squares in the picture respectively. When the expanded view is folded along the dotted line into a cube, the opposite sides The two numbers are opposites of each other.
The following is an expanded view of a cube. The positions of the three faces in the cube have been marked. E represents the front, F represents the right, and D represents the top. Can you determine the positions of the other three faces A, B, and C in the cube? Location?
Class summary
1. Surface expansion diagram of cube
2. Expansion and folding of other common geometries.
Keywords: Rich graphical world courseware, expand and fold courseware, Beijing Normal University edition seventh grade mathematics volume 1 PPT courseware, seventh grade mathematics slide courseware download, rich graphical world PPT courseware download, expand and fold PPT courseware download, .ppt Format
For more information about the PPT courseware "Expand and Fold the Rich Graphic World", please click the Expand and Fold ppt Rich Graphic World ppt tag.
"Expand and Fold" PPT:
"Expand and Fold" PPT Part One: Analysis of Examples Example 3. Cut a rectangular paper box and spread it into a flat surface. This was cut by me. What I cut is like this. The above figures are called flat expansion diagrams of a cuboid. Observe the expansion diagrams you cut and tell me...
"Expand and Fold" Rich Graphic World PPT Courseware 4:
"Expand and Fold" Rich Graphic World PPT Courseware 4 Knowledge Preparation 1. Definition In a prism, the intersection of any two adjacent faces is called an edge. In a prism, the intersection line of two adjacent side faces is called a lateral edge. 2. Types of prisms: triangular prism, four prism, pentagonal prism..
"Expand and Fold" Rich Graphic World PPT Courseware 2:
"Expand and Fold" Rich Graphic World PPT Courseware 2 There are 10 unshaded squares on the cardboard as shown in the picture. Choose one of them and fold it together with the 5 shaded squares in the picture to form a cube packaging box. How many different ways to choose. As shown in the picture is a...
File Info
Update Time: 2024-08-01
This template belongs to Mathematics courseware Beijing Normal University seventh grade first volume mathematics industry PPT template
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