I recently led a session on grammar and mechanics for a university wide committee on writing at Drexel University. This session was in response to several complaints from committee members about all of the errors students make. So I wrote a document that helped me lead the committee members through the "errors" issue. They found it useful, so I'm posting it here in case other WPAs might want to use or amend it. I know it could use some reorganizing, but . . .
Go to Important Links on the sidebar to the right, and I think you'll find it.