| Category | Format | Size |
|---|---|---|
| People's Education Press Second Grade Mathematics Volume 2 | pptx | 6 MB |
"Cut a Cut" PPT download
Description
"Cut and Cut" PPT download, 15 pages in total.
Scenario import
Paper-cutting is a folk art with a long history in my country.
Some of the beautiful paper cuts below are axially symmetrical.
Explore new knowledge
Knowledge points Use symmetry knowledge to solve practical problems
Can you cut out 4 little people holding hands like the one on the right?
What are the characteristics of these four villains?
These four little figures are exactly the same shape and size, and are connected hand in hand.
Each villain is an axially symmetrical figure.
Consolidation exercises
1. (Selected from textbook P36 T12) Can you cut out a picture like the one below?
3. Take a look in the mirror.
4. As shown in the picture below, fold the paper in half once to cut out 1 butterfly. Fold it in half twice to cut out 2 butterflies. To cut out 4 butterflies, you need to fold it in half ( ) times.
Class summary
When cutting paper, first observe whether the cut figure is axially symmetrical. If so, fold it in half first, then draw half of the figure along the crease, and then cut it out. Pay attention to the drawing method and origami method during the operation.
Keywords: Free download of cut-a-cut PPT courseware, graphic motion PPT download, .PPT format;
For more information about the PPT courseware "Movement of Graphics, Cut and Cut", please click on the "Motion of Graphics, Cut and Cut" PPT courseware.
Download the motion PPT of the "Cut, Cut" graphic:
"Cut and Cut" graphics movement PPT download Part 1: Objective of this section By folding and drawing, continuous symmetrical patterns can be cut out. Through the cut-out graphics, find out the rules and deepen your understanding of translation. ... ... ...Cut the PPT, part two...
File Info
Update Time: 2024-06-18
This template belongs to Mathematics courseware People's Education Press Second Grade Mathematics Volume 2 industry PPT template
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