It's been quiet here for the last little while because I've been working on a Rip, Mix, Learn presentation I'm giving to math teachers here in Manitoba next Friday, October 21. I've tried to make the presentation easily naviagable and mostly self-explanatory for those teachers that wish to take a non-linear approach to learning the material at their own pace. For those that wish to follow a guided tour I've tried to make it as interactive as possible by including lots of play time.