Don't overthink it! If you have any interest in teaching and have a bachelor's degree already you are most likely qualified to start immediately in probably mos

Don't overthink it! If you have any interest in teaching and have a bachelor's degree already you are most likely qualified to start immediately in probably most public districts in most US states, as long as you are filling a hard to fill position such as a math teaching position. Those are incredibly understaffed right now. Schools with multiple vacancies staying unfilled for years are not unheard of. And if you want to get your feet wet just to see if you have interest in a greater commitment, they are always looking for subs. You can start out as a daily sub (just a babysitter essentially) and will very quickly be able to volunteer for a long term sub math position as soon as they see you're a dependable adult at all, and check the box of having a bachelors in a STEM field.