Mr. O'Brien's 2012-13 Period 4 AP Calculus
Friday, January 4, 2013
Wow. Just wow.
From Duncan:
http://www.itsokaytobesmart.com/post/16530098836/mind-melter-of-the-day-it-turns-out-that-if-you
and a bit of the background...
http://www.youtube.com/watch?v=daro6K6mym8
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