Folding Paper

      There is a project that requires students to be able to say what the crease pattern is for 2, 3, and 4 folds. When I read the folding handout for the first time, I didn’t understand what is the meaning of “Some of the creases point vertex up, some down”, so I was stuck there. Then I look up other material- the mentioned website- I know that the paper would have a single crease in a direction you might want to call “up” or "down", if you were to unfold the strip of paper. So, next, I easily recorded the crease patterns:

2 folds:  up down down

3 folds: up up down down up down down

4 folds: up up down up up down down down up up down down up down down