How to fit half sheet of paper over your head?

Question

In one of my classes today we tried that.. we cannot cut it to wear there are open ends.. we cannot cut a strip off the edge and put it over our heads.. I don't mean like stick on top of your head like a hat, I mean put it over our heads onto our shoulders, like a necklace.

We cannot tear it or cut any parts out of it.

We did this activity today and we aren't doing it anymore and the teacher didn't really tell us the answer.

Answer 1

I think I know what trick your teacher had in mind.  You cut the paper, but you don't cut anything out of it.  Fold it in half, then make cuts almost all the way across starting on alternating sides (kind of a big zig zag).  Then cut across the strips on the fold (except the 1st and last) that so it opens up in a bunch of linked strips - still one piece, and if you do the cuts close enough together, you can walk through it.  Here's a link with a video.

http://www.krampf.com/experiments/Scienc...