How Do You Make Math Fun?

I was recently asked to be on a panel discussion online, along with a few others with an interest in recreational mathematics. The topic was how do you make math fun? Because of time zone differences, I ended up writing a fairly detailed first post on the panel. I thought it would be of interest to readers of this blog …

Wizard Standoff Game & Lesson Plan

I just received an email from a teacher named Dustin Stoddart, who turned the Wizard Standoff Riddle I created with TED-Ed into an interactive classroom game. This is an appealing way to explore the intuition behind the probability and game theory of the original riddle. I’m sharing the original riddle and Dustin’s lesson below. Thanks, Dustin!


Fibonacci-like number sum puzzle

I just add a fascinating conversation on twitter, and I made a video to pose it to you. In particular, if you’ve got upper elementary or middle school students (or high school, or college), and want to explore whether this pattern keeps working, I’d love to hear how it goes. Here’s the original tweet, and my video synopsis below. I …

Letter to a student – Fibonacci numbers and Lucas Numbers

Last spring I received a letter from a student who wanted to know more about me, and more, especially, about Fibonacci numbers. I wrote him back, and shared a bit more about Fibonacci numbers and their twin sibling, the Lucas numbers. Fibonacci numbers get a lot more attention, but, like real and imaginary numbers, there are many things about them …