Angela (Angie)’s Answer
Once you've thought about what age group you might want to teach, I'd suggest that you:
1.) Research the pay level of that type of teacher in the area of the country where you think you might want to live
2.) Research what level of education a teacher in the area of the country where you'd like to live needs to have
3.) Look for opportunities to teach now -- in your community -- so that you can start to get a feel for whether or not the teaching thing is really what you want to do
4.) Identify people that you/family/friends may know who are teachers that you might talk to who can give you a real view of what it's like teaching at the level you think you'd like to teach at
5.) If after all this, you still think you want to be a teacher, start looking at schools that offer the education required to teach the subject you want to teach in the area of the country you wish to teach and identify those that are most economical in cost, you like, and that will give your the educational credentials to get your teaching license -- be mindful that you're not going to make a huge sum of money being a teacher, it's more a labor of love and you want to manage your educational debt
6.) Dive in! Enjoy your educational experience, learn all that you can about your subject, the art of teaching, the psychology of what you're teaching, etc.