"Central Symmetric Figures" Rotation PPT Courseware

Description

"Central Symmetric Figures" Rotation PPT Courseware

Clarify learning goals

1. Understand the definition of centrally symmetrical figures and be able to identify centrally symmetrical figures in life.

2. Understand the application value of centrally symmetrical figures in life and feel the beauty of mathematics.

Explore point 1: The concept of centrally symmetrical figures

Activity 1: Read the content on page 65 of the textbook, communicate with each other and think about the following questions:

(1) What kind of figure is called a centrally symmetric figure?

(2) What is the difference between it and central symmetry?

Exploration Point 2 Application of Central Symmetry Graphics

Activity 2: Communicate with each other and think about the following questions: Among the car logos in the picture, which ones are centrally symmetrical figures? Give a few more examples of centrosymmetric figures

Summarize, sort out, integrate and improve

1. Centrally symmetrical figures: Rotate a figure 180º around a certain point. If the rotated figure can coincide with the original figure, then this figure is called a centrally symmetrical figure;

2. The difference and connection between central symmetry and central symmetric graphics: Central symmetry is the relationship between two graphics, while central symmetry refers to the characteristics of a graphic itself;

3. Identify centrally symmetrical figures and axially symmetrical figures: Centrally symmetrical figures have a symmetry center, and axially symmetrical figures have an axis of symmetry.

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For more information about the PPT courseware "Rotation Center Symmetry Figures", please click the Rotation ppt Center Symmetry Figures ppt tab.

"Central Symmetry Figures" PPT courseware 3:

"Central Symmetric Figures" PPT courseware 3 Self-study: book p124 1. What is a centrosymmetric figure? Center of symmetry? Symmetry point? How to verify that a figure is centrally symmetrical? for example. 2. What is centrosymmetry? Center of symmetry? Symmetry point? 3. middle...

"Central Symmetry Figures" PPT courseware 2:

"Central Symmetric Figures" PPT Courseware 2 Do it: Rotate the parallelogram 180 degrees around the intersection of the diagonals. What conclusion will you draw? Defined in a plane, a figure rotates 180 degrees around a certain point. If rotated The shapes before and after overlap each other, then this...

"Central Symmetry Figures" PPT courseware:

"Central Symmetric Figures" PPT courseware Observation Rotate the following figure 180 degrees around point O. What do you find? (1) Line segment (2) Circle (3) Parallelogram (4) Square The definition of centrally symmetrical figures is to rotate a figure 180 degrees around a certain point, such as...

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Update Time: 2024-11-21

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

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