Like yesterday, buying gas. I started spinning this credit card advertisement and something about it didn’t make sense. I stared at it, cocking my head back and forth like a magpie. Then I saw the two different radii and laughed at myself.

A year ago, that would’ve ended it, but nowadays – I don’t know. Even during the summer, I can’t turn this thing off, this thing which I tried to illustrate in my second vodcast. I grabbed my Canon PowerShot and shot some video. Then I dumped it into Adobe AfterEffects and added some clarifying visuals.

I’ll play it someday next year at some moment when I’d like them to scratch their heads over how one circle has more circles inside of it. I’ll ask them to make their own, maybe, or maybe we’ll just enjoy the moment, a moment when we brought the world into our math class with video.

Clever Circles from Dan Meyer on Vimeo.