Friday, December 9, 2011

Flex!

Ulaanbaatar, Mongolia
Friday, December 9, 2011
Once again it's time for paper flexagons in math class. One of my students quickly found all (?) 18 patterns by creating a very fun set of designs. Next week we'll hold our annual Flex-Olympics in which students will compete to see who can find all the faces in the fewest flexes.
Click the video below to see the designs in action...

Here's a link to my favorite hexa-hexa-flexagon numbering system.