If you were further along in your training you would know the answer to that.
No, you do not log your ground school teaching as hours. No, you do not log hours in your log book while sitting in seat 56H on an airliner (had one student do that). You log those hours that you are in the air.
As far as getting paid for instruction it depends. I have been to schools where the instructor only gets paid for flight time. That means all time spent briefing and debriefing is not paid. That is not good since you will never get briefed properly as a student. Or, the instructor will brief and teach you theory while flying. The cockpit is not a good classroom environment.
As I an instructor I make it crystal clear to my students that they will pay for the time that they book me. If they want 2 hours instruction they will pay for 2 hours, whether in the air or not. If they do not cancel 24 hours in advance they will pay as well. As an instructor your time is valuable and you should treat it as such.