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


  1. Whoa! Thanks for the link, but at least spell my name right! And had you already seen Beer Geometry? Not that big a deal? I’ll just have to search harder.

  2. Whoops. First day of school. I’m somewhere else right now.

    I showed my kids beer geometry during show and tell one day last year which totally, collectively freaking blew our minds.