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. This is what greeted me when I woke up this morning (I’m on the east coast so I have to catch up each am). It was a great way to start the day.

    I am left wondering how long you’ll stick with twitter. How long can you continue to be witty and amusing in 140 characters or less?