working for "the man"

Working for the University of Phoenix has been a nice bonus but I'm starting to experience a few problems. First is the economics of higher education. I am hired as a private contractor, meaning they don't have to pay any benefits, plus I'm supposed to come up with all the materials and resources for my own classes. I get paid a little under $1,000 per class and each student pays a little over $1,000 per class. That's a comfortable profit margin. Second, they have decided that I can teach everything so the past four classes assigned me, three were new. Two of them psychology classes which I'm not too strong in anyway. Third, there was a scheduling mix-up so they tabbed me to pick up a geography class, a week before it started. Its one I've taught so I wasn't too concerned until I looked more closely at the schedule and realized they had scheduled me over another class. They told me they would get me a sub for that night, now what I'm waiting to see is if they dock me pay for having to get a sub even tho its their fault. Oh well, I've almost made enough off of them to pay off my student loan, which was the original intent.