Dan Meyer. A very smart, talented and enthusiastic young man who, despite our age-gap and the very different fields we teach (his is middle-school math, mine is college-level EFL), rarely fails to teach me lots. Not too long ago I spent happy hours reading and commenting on his blog. I just learned some more watching his 12-minute TED talk.

UPDATE: The video won’t play for some reason (“error #2032” whatever that means), and the same error occurs on the TED website. While TED is fixing this, you can download the video by clicking here: http://video-subtitle.tedcdn.com/talk/podcast/2010X/None/DanMeyer_2010X-480p-en.mp4