http://blog.weallusematheveryday.com/2007/10/25/episode-404-%e2%80%9cthirteen%e2%80%9d-airdate-101907/ The weekly blog of the "We All Use Math Every Day" program - a partnership between Texas Instruments and CBS, in association with the National Council of Teachers of Mathematics (NCTM). Fri, 21 Nov 2008 03:17:03 +0000 http://wordpress.org/?v=2.2.2