Picture 2 + 2 = Brotherhood of SteelSeptember 19, 2013
"Math. Math never changes..."
Picture Mathemack DaddiesAugust 27, 2013
These guys are smooth operators.
Video Portal on TI CalculatorDecember 05, 2012
Now you're graphing with portals!
He shall not pass Algebra.
Picture Quadratic Formula Pac-Man TattooJuly 20, 2011
Pac-Man loves eating algebra almost as much as eating ghosts.
It's not weird if the Game Master is also your dad.