Good question....maybe we should move this to the archaeology forum where more people will see it?
From what I know of high school curriculums, you probably don't have a lot of flexibility in your schedule and even if you did I would suspect the number of ancient history classes would be limited.
To a certain extent, the answer to the question revolves around which area of the world interests you in particular. For Middle Eastern or Greco-Roman archaeology I'd say any time spent learning how to read Greek, Latin, Egyptian, Akkadian, etc. would be time well spent, as an example.
One thing which would seem to be useful to any field (in case you don't know what your area of interest is yet) would be to volunteer for local digs through a museum or local college program. Your guidance counselor might be of some use in that, at least in terms of contacting the departments and then pay close attention to the team leaders and how they do their fieldwork. It strikes me that such experience would always look good on a resume.
What do you think Michelle? Should this one be moved to the discussion forum?
Something is wrong here. War, disease, death, destruction, hunger, filth, poverty, torture, crime, corruption, and the Ice Capades. Something is definitely wrong. This is not good work. If this is the best God can do, I am not impressed.
-- George Carlin