When should I take the Praxis? I am in school now for licensure. I am trying to figure when i can take the praxis and still have it count towards my license. I am seeking endorsements in both history and biology. Last spring, I finished all my history coursework and have three semesters left for biology/education.

When the the earliest I can/should take the praxis? I would like to get the history ones out of the way since I don't have anymore history classes, but will it still count?

If it matters, I'm in TN right now, but will probably be moving out of state after I get my initial license to either another southern state or (more likely) the northeast. 

Thanks!