Hans Rosling has multiple TED gigs... a rare honour in itself. This is a video of one of his earlier talks. He demonstrates a way to visually interrogate complex multi-dimensional statistics, with fascinating results. This video will not run full lenght in some classes, but will captivate the more intellecutally adventurous and capable. You can discuss the idea of "a picture tells a thousand tales", and also take students to visit http://www.gapminder.org/ where he provides the same wonderful graphing tools free, allready loaded with UN data. Gapminder can also be downloaded if you are having 'net issues. If you want to expand on the joys and traps of stats, I can strongly reccomend How to Lie with Statistics by Darrell Huff.