The good thing about teaching percents is that they connect to the real world, particularly with money. The bad thing is, it can be hard to find really [...]
Things are crazy busy, and haven’t posted in too long. I’m not going to change that in any serious way at the moment, but when xkcd throws up something [...]
Happy post-Thanksgiving! To all Seattlites looking for a math-rich event for kids, we’ve finally got some Math Salons on the calendar, starting in January. [...]
Katherine and I recently got into a big discussion with our friend Peter, who makes low cost, super-efficient wood stoves for use in the developing world [...]
I blogged On Danger a little while ago (best viewed in the archive, over here), and this xkcd post is the perfect followup.
Great comments in the last post! In the spirit of self referential comedy, I have to include one of the suggestions mentioned there: If you go to the original [...]