answer:It varies widely by state and by how badly the state needs teachers. As a general rule, it’s about a year’s worth of classes, plus student teaching, and you can usually take them at night. If you’re in a state that really needs teachers, you might be able to get provisional certification and then take the required classes over the next few years. Your best bet, as you’re in school now, is to consult the education department—they can give you more concret information.