#Calculus teachers! Create a solid of revolution by rotating two freehand functions around an axis in less than 5 minutes in @GeoGebra #mtbos #iteachcalculus #iTECHmath @HamiltonCoESC https://t.co/pJnREQpxJyhttps://t.co/VLSWTvTzkW pic.twitter.com/2149jsmLck

— Steve Phelps (@MathTechCoach) July 17, 2019

draw a random polygon, and connect the midpoints of its edges to make a new polygon. Repeat this and it converges to an ellipse pic.twitter.com/JgnVOKmxhZ

— Matt Henderson (@matthen2) April 15, 2020

construction of a Julia set through repeated twists, reflections, and shifts. The twists correspond to the complex square root. pic.twitter.com/5Q6AuiTE0o

— Matt Henderson (@matthen2) April 14, 2020