Hello, reader! If you intend to post a link to this blog on Twitter, be aware that for utterly mysterious reasons, Twitter thinks this blog is spam, and will prevent you from linking to it. Here's a workaround: change the .com in the address to .ca. I call it the "Maple Leaf Loophole." And thanks for sharing!

## Sunday, October 9, 2011

I purposely didn't bring any school work home after I spent all day Saturday in school, planning. (We can't get into school on Sundays. Well, we can, but you have to disarm the alarm system, which I am too afraid to try.) I've had trouble this year Turning It Off, and I was trying to force myself into some down time.

Here's what my down time looks like: (or will, until it gets pulled down for copyright violations)

Also, if you're an Nspire person, here's a file with the area proof of the pythagorean theroem.

Days off are exhausting.

1. Congratulations on taking a day off to play. I find that too often we're focused on the here and now. How do I prepare for Monday's class? How can I make my lesson more engaging? I think most of us need to follow your lead more often. Wouldn't it be great if we could provide our students with opportunities to play on a regular basis?

Great job. It looked like you had fun.

2. Decidedly awesome... how long did that take you?

3. Nice one, Kate!

What's the name of the final product you made? Pentagonal Solid? Lol, I'm so lame...

Also, how do we make those individual Post-It members so that each one will be one part of the complete solid? How many of them do we make, gosh?

Thanks!
Del

4. Thanks!

Making the model took about an hour and a half. Making the video didn't take very long, except for waiting for the import and export to/from iMovie.

The model, generically, is called a regular dodecahedron. It is one of the Platonic solids - 3d figures where all the faces are regular polygons. Imagine a cube, or a pyramid made of equilateral triangles - those are other examples of Platonic solids. "Dodeca-" is the prefix for 12 - this model has twelve pentagonal faces.

If you click through to YouTube, you'll see that this video was a response to one by James Grime giving instructions for making it. It takes 30 post-its.

5. Also, if you feel like challenging kids, I made an instructional playlist for making other models in modular origami. They're not really that hard, but they look impressive when completed. And I'm a fan of anything that encourages kids to play with how things fit together.

6. Nicely done, maybe this will be next on the building docket. A mini post-it sponge.
http://www.flickr.com/photos/rougeux/sets/72157621702780335/?page=2

Hi! I will have to approve this before it shows up. Cuz yo those spammers are crafty like ice is cold.