He is actually teaching himself a new language found in his mother's homework called: Algebra. This, he will soon adopt as his native tongue... as Brains do.
Brains are amazing creatures. When left wild and untamed, they will teach themselves how to graph
on a Calculator. But watch out, once they have the devise figured out... they want one for themselves, and those buggers are not cheap.
My advise to those of you who may stubble on "The Brain" in the wild is: keep your college homework out of arms reach or the animal might try to follow you home.