Learn By Doing: Tossing a Fair Coin Three Times
http://phhp-faculty-cantrell.sites.medinfo.ufl.edu/files/2012/12/LBD_06001_099.swf
http://phhp-faculty-cantrell.sites.medinfo.ufl.edu/files/2012/12/LBD_06002_099.swf
http://phhp-faculty-cantrell.sites.medinfo.ufl.edu/files/2012/12/LBD_06003_099.swf
This document is linked from Basic Probability Rules.