Hil, I think part of the job of teaching is teaching student what the expectations are. Again and again in some cases.
I remember one prof in college who, towards the end of the semester, came in with his own college diploma and held it up and said, "Do you know what this means to potential employers?"
After a few students called out things like "Skills!" or "Knowledge!" and whatnot, the prof said, "No! It means one thing: over the past 4 years, you have learned how to survive in a bureaucracy, which makes you employable."
He was a bitter old cynical dude, but I don't disagree with him.