This was based on an idea our Dance teacher saw on YouTube when she was looking for a special way to fold money for a birthday. As soon as she showed me the video I remember making chains with my mom using gum and starburst wrappers.
The video used $1.00 bills which gave the bracelet some extra give to get over the hand and then cinch a bit for the wrist. I didn't have any cash on me and for some reason trial and error seemed faster and easier than looking up dollar bill dimensions on-line. So, I took some printer paper and started to mess with sizes - it took a couple of tries to find the right ratio for the rectangle.
I found that paper 2.5 inches wide x 7 inches long gave us the extra movement needed to fit over hands.
Students decorated 10-12 strips of paper the first day. We did a little math if they had 30 minutes left and 10 strips - then they had only 3 minutes for each one. I tried to stress that they had very little time to color/design their papers. Most finished, some didn't - but got close enough.
The next class I showed the kids how to fold, assemble, and finish their bracelets. Most students finished, but a handful did not - I promised to put the videos on the blog so they could make/finish them during break!