Anti-parabola propoganda, plus musing on math class, cardioids, connect the dots, envelopes of lines, even a bit of origami. Another way to get a cardioid is to add up circles like this: ... Extra poin
by naztazia
by KidArtX - Cute Simple Art
by The Casting On Couch
by LifeStyle Designs
by easy rangoli
by Shake the Future
by BluntlySassy