I know you're a grad student
and you already learned the material
but clearly you cannot teach it
and I want to learn it too

So we're going to be having some problems
I don't want a bad grade 
and you don't want a bad review
so get your shit together

Know what the fuck you're talking about
don't tell me to go look it up in the book
I personally think you shouldn't be teaching
You don't seem to know how to