triangles

  • Seashells: Beach Picture Craft Camp Video 2

    Hello mathematicians, puzzlers, and other curious people! This video shows the next step in assembling our beach pictures, putting some seashells in the sand. The next step will be up tomorrow, provided things go smoothly (or at least manageably). I\’ll also post a proof of that important fact about the inner angle sum of a…

  • Snowflake

    Hello mathematicians, puzzlers, and other curious people! As a test of a new streaming program I just livestreamed the process of making an animated Koch snowflake in GeoGebra. Right now because it took so long I\’m not planning to EVER do that again so here it is in the archives for you to enjoy if…