Hello, I have been looking into the cost of graduate school, and I am kind of confused about how much it costs. For example, on the MIT grad school website they say that most of their graduate school students get some kind of external or internal support, but they never really say whether that covers all of the cost or just some of it. On this page http://web.mit.edu/physics/graduate/applicants/fundinginfo.html they say that "For both RAs and TAs, full tuition is paid over and above the stipend." What does that mean? I think that linked page is saying that graduate school is free if you are willing to TA or RA, but I am not really sure I understood it right?