Hello! I am the Chief Photographer at my college station, and am responsible for teaching all the new members how to shoot and edit.
One thing that drives me crazy (that no one's mentioned) is how new photogs frame interview shots. Not just the rule of thirds and talk space/nose room, but the background. So many people just have the person sit against a blank wall, providing no dimension, or sit them somewhere with a distracting background that takes the focus away from the interviewee. One thing I would stress, if I were you, is to shoot them in front of something relevant and subtle, something that has to do with either the story in general, or what that specific person is talking about…anything but a blank/boring wall! It helps the piece SO much.
Good luck teaching!