<p>Do you want to be a teacher or a scientist? Presuming being a science teacher is your goal focus on the education degree requirements with the major in biology, get the first job and then plan your masters degree program. You have enough years ahead of you to get through before deciding all the details- in the course of going to college and working as a teacher you will learn how most HS teachers handle the additional education. Relax and take things one step at a time, they will unfold as you progress through the system.</p>