Yesterday I said I would post the companion to the sharp key signature hand-out, and here it is. [Edited: The PDF now contains both handouts.]
Many teachers have their students take standardized theory tests such as the Royal Conservatory test, the National Music Certificate Program, and tests given by various affiliates of the Music Teachers National Association. My students take the Texas State Theory Test, and other states offer one, too. In my opinion, this is a good thing for teachers to add to their studio. While it is extra work, it really pays off. You have the guarantee that your students are prepared for whatever musical path they choose. Even if you think your students are not that serious, how do you know what they will want to do with music in the future?