I spent today's origami and math class talking about how to fold a sheet of paper into thirds, or fifths, or sevenths, etc, using Fujimoto's algorithm, and then getting them to fold four square twists, one each on the corner 2x2 squares of a 5x5 grid. Lots of fun was had by all, and there was also much muttering and swearing under breath, trying to get all four twists to twist simultaneously.
All in all, it felt like a very successful class: we did some nice number theory, and some nice tesselations.
Yours, twisting again,
N.
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