## Tuesday, November 8, 2011

### Geometry - Making a Paper Plate Icosahedron

An Icosahedron is a 3D Shape with 20 Sides!

Materials
• 20 small plates
• stapler
• crayons/markers (optional)

Directions
• Students could color or decorate the plates, if desired.

• Next, fold each plate into a triangle.

• Staple 2 plates together. Use 3 staples.
• Attach 3 more plates and form a pentagon.

• Repeat the last 2 steps with 5 more plates to make another pentagon.
• Staple the 10 remaining plates together into a long chain.

• Staple the ends of the chain together to form a circle.

• Staple one pentagon to the top of the circle and the other pentagon to the bottom of the circle.

You can now display your 3D figure on a table or hang it from the ceiling.

Math Facts

An icosahedron has:
• 20 triangular faces (sides)
• 12 vertices (corners)
• 30 edges

Here is a cool video of an icosahedron.

Have fun with geometry!

1. What a great idea! I'm going to go ahead and pin it onto my Math board.

2. Looks like a lot of fun to do. I can't wait to try it.
From Wed Wild Hop, new GFC follower. Please swing by when you have time and follow us back. Thanks. Thursday Two Questions Meme

3. Miss Moe~ Thank you! I added a video I found online to the post!
Self Sagacity ~ Thanks, I followed you back
Marcia :)

4. Great tutorial. Thanks for posting at Math Monday!
Cindy @ love2learn2day

5. My pleasure, Cindy! :)

6. Welcome to a new Linky Party for Kid-Focused Bloggers. Monday Kid Corner is a place to share your kid-friendly activities and crafts. Please join us at www.mondaykidcorner.blogspot.com. See you there!