**[PLAY IT HERE](http://ncase.me/polygons)** --- This playable post is [public domain (CC0)](http://creativecommons.org/publicdomain/zero/1.0). Please feel free to use this in your classrooms, make video/picture/text adaptations, or modify the source code! Attribution is not mandatory, but super appreciated. We are [Vi Hart](http://vihart.com/) and [Nicky Case](http://ncase.me/). Show us how you're using and remixing Parable of the Polygons! Tweet us at [@vihartvihart](https://twitter.com/vihartvihart) and [@ncasenmare](https://twitter.com/ncasenmare).