(Psst! Play it cool.)

Today’s the first day of classes at OU (of course, if you’re an OU student and didn’t already know that, then your year is off to an inauspicious start!)

Hopefully this means some interesting classes, some cool not-in-class stuff, and the start of <100 degree days!  You know you live in Oklahoma when yesterday felt cold!

A math class cheat sheet from xkcd.