Here's an example of a problem from the first International Mathematics Olympiad (IMO) whose solution is accessible to anyone with basic understanding of math. The solution fits in a single tweet. pic.twitter.com/X8G3PfcNEr
Regular pentagons don't tessellate – but there are 15 other types of pentagons that do. We’ve collected all of them at https://t.co/PDYbPhRhMa. Can you fit them together? pic.twitter.com/a7I5Z32des
Trying to distract myself from the impending news, here's some more orbit playing. This time tracing segment between two points rotating around 2 ellipses, some of which are offset from each other. Some really interesting results 😊 #GeogebraArt#geogebra@geogebrapic.twitter.com/iC0RFUerSn