Activity 3 Dividing a Length into Equal N ths: Fujimoto Approximation

Fujimoto’s approximation technique for folding a strip of paper (or the side of a square) into 1/nths for n odd is presented. Numerous questions can then be asked, such as “Why does it work?” and “What does the sequence of left and right folds in this method tell us?” and “When do we get pinch marks at all multiples of 1/n?”