* Complete a teacher preparation program: This usually involves a master's degree in education or a post-baccalaureate certificate in education. The program will provide you with the pedagogical knowledge and skills necessary to teach effectively.
* Obtain state-specific teaching licensure: Requirements vary by state, but generally involve passing subject-matter tests, completing student teaching, and undergoing background checks. Your communications degree might be relevant to certain teaching areas, such as journalism, speech, or English, but you'll likely need additional coursework to meet licensing requirements in those fields.
In short, a communications degree can be helpful in teaching certain subjects, but it's not sufficient on its own. Further education and certification are absolutely necessary to become a high school teacher.