Did the Barber Math Puzzler at the end of today’s Precalc H class. This is a lot of fun, and the students can work their way towards the general solution in less than 10 minutes!
There are some interesting mistakes in this board. Love mistakes!
This problem has legs. I ran a Play with Math session with a bunch of teachers across NYS on google hangouts, and they solved it in very different and interesting ways. Try it out, it’s a lot of fun.
Here’s the work from the three different groups who were working collaboratively through a google doc: