Today was a pretty exciting day in terms of math-y origami (In terms of everything else, not so much.)
Left: Octagonal tato I am using as thank you notes. Spent this afternoon folding a writing, but still not done.
RIght: Parabola approximations. Got to school 15 minutes earlier than normal this morning to present a potential math IA topic to my teacher. After my first idea failed, I decided to focus on approximating the area under a parabola using tangent lines that can be easily generated with origami.