He's saying that your school buys you a Mac, buys you a copy of Windows for the Mac, then buys you a piece of software that lets you run Windows on your Mac.
I think (As a Mac user) that If I was the school, I would have just bought everyone a Windows box.
Or, did you pay for the Mac, Parallels and Windows, because they required Windows / Applications for Windows that don't work on Macs.