"Lively Folk Festival" PPT courseware 2

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"Lively Folk Festival" PPT courseware 2

What do the shapes of these objects have in common?

1. Think about how to verify.

2. Hands-on verification.

3. What conclusions did you get through the operation?

Think independently first, and use the learning tools in bag No. 1 to verify the operation, and then communicate in the group. Finally, the whole class communicates.

symmetrical plane figure

Determine whether the plane figure in the tool bag is an axially symmetrical figure or a folded out axially symmetrical figure and draw its axis of symmetry, and talk about how many axes of symmetry it has.

Post the group's research results on the blackboard and demonstrate them.

After class improvement

Use what you learned about symmetry to design and create a picture to beautify your room.

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"Lively Folk Festival" PPT courseware 5:

"Lively Folk Festival" PPT Courseware 5 What do these three pictures have in common? The upper and lower sides of a goldfish are the same. The left and right sides of the kite are the same. The left and right sides of the face are the same. These objects are all symmetrical. Do it 1. Fold it in half and then cut it..

"Lively Folk Festival" PPT courseware 4:

"Lively Folk Festival" PPT Courseware 4. Now that you have finished appreciating the pictures, what impression did these pictures leave on you? Like this, the phenomenon that the two sides of a figure can completely overlap after being folded in half is called symmetry. After folding in half like this, the figure with both sides completely overlapping is called an axis.

"Lively Folk Festival" PPT courseware 3:

"Lively Folk Festival" PPT Courseware 3 Learning Objectives (1) Teaching knowledge points: Understand axially symmetrical figures in specific situations; learn to determine the symmetry axis of axially symmetrical figures through practical operations, and be able to use the given simple instructions on graph paper Draw one half of the axially symmetrical figure and draw the other..

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Update Time: 2024-11-23

This template belongs to Mathematics courseware Qingdao Edition Third Grade Mathematics Volume 2 industry PPT template

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