http://mathventures.org/2008/03/15/alan-kay-a-powerful-idea-about-teaching-ideas-ted-2007/ We promote math knowledge and understanding with situations, anecdotes, jokes, photos, videos and anything else that will make you smile, laugh, think and enjoy things mathematical. Sat, 19 May 2012 17:45:09 +0000 http://wordpress.org/?v=2.2.1