I'm Dan and this is my blog. I'm a former high school math teacher and current head of teaching at Desmos. He / him. More here.


  1. Well, since evidently I’ve been on another planet, I just rediscovered this contest, and alas don’t see that I can complete it this evening!

    But, I read someone’s comment that the thing was in the doing of it, so….when I have time this week, I’m going to create my own, just for the “doing of it” and for the reflection.

    Thanks for the challenge, and sorry I missed it!

    Looking forward to seeing the products!