Risk of Not Changing

Image from http://imgs/xkcd.com/comics/conditional_risk.png

I got this cartoon and from Great Math Teaching Ideas. William Emery suggests that it be used as a starter for a unit on conditional probability. This is a great idea, I probably will.

The cartoon had another meaning for me. The educational context of this is that we can keep on teaching in the same way as we always have and we could be just fine. The risk of being wrong is just too high for me to make that decision.