What WAS that? or, What was THAT? [#NCTMDenver] | Overthinking my teaching

http://christopherdanielson.wordpress.com/2013/04/21/what-was-that-or-what-was-that-nctmdenver/

Christopher Danielson reflects on the final session of #NCTMDenver, a math-love-fest with George and Vi Hart. The talk involved math, it showed off math, it showed a deep appreciation for math, but yet it was difficult to exactly summarize what the talk was about.