A "major" is the curriculum within an academic department that leads to a degree. An "endorsement" lists the courses that are required to receive certification to teach a particular subject. Often the courses in the major and endorsement align, yet there may be 1-2 additional endorsement courses required for content (major) methods.
If you are a post-baccalaureate or MIT student, you may need to take additional courses to meet endorsement requirements prior to starting the Secondary Education program. An endorsement evaluation will help determine any outstanding courses.
Future undergraduate applicants are advised to consult the academic major endorsement advisor in their academic department. A Secondary Education applicant must have one qualifying endorsement to meet certification requirements.