Bachelor's Degree

Most states require you to have earned a bachelor's degree. However, depending on the state you live in, the bachelor's degree may not have to be in the subject you plan to teach.

Time in the Classroom

Every state requires that prospective teachers intern or work in the classroom. The amount of classroom time required varies by state but is usually at least 45 to 55 hours.

Content Coursework, Credential or Accreditation Program

Most states require that prospective teachers complete an accreditation program or a set amount of content-specific coursework related to teaching. Depending on your situation and the state you live in, this coursework can usually be completed as part of a bachelor's or master's program.

Exam

Prospective teachers are required to take the Praxis II national exam or a similar state exam upon completion of their coursework to earn a state teaching license or accreditation. Depending on the program and the state, you may also have to take additional national or state subject matter competency and teaching exams.

Alternative Routes

Due to the shortage of teachers, many states have created alternative routes to obtain a teaching degree, particularly in math and science. Requirements vary by state but often include previous work experience in the field and recommendations by school representatives or previous employers. Additional teaching coursework may also be required after you've begun your job.

Source:

Humboldt State University: How Do I Become a Teacher?

Wright State University: Graduate Level Teacher Preparation

Texas State Board for Educator Certification: How to Become a Teacher in Texas