http://mathheadinc.com/blog Sun, 31 Jan 2010 06:21:54 +0000 http://backend.userland.com/rss092 en http://mathheadinc.com/blog/2009/10/01/can-a-4th-grader-learn-trigonometry-and-calculus/ http://mathheadinc.com/blog/2009/09/30/addadhd/ http://mathheadinc.com/blog/2009/04/20/dont-tell-her-that/ http://mathheadinc.com/blog/2009/04/06/teaching-calculus-to-a-d-math-student/ http://mathheadinc.com/blog/2009/04/02/why-would-anyone-want-to-teach-calculus-to-a-7-year-old/ http://mathheadinc.com/blog/2009/03/30/mathheadinc-the-blog/