A teacher shall not teach a course in which an end of course examination is required for students to satisfy graduation requirements established by the state board of education pursuant to § 49-6-6001(a) if the teacher's license does not carry a subject specific endorsement for the subject area of the course, unless the teacher demonstrates sufficient content knowledge in the course material by taking and passing, at the teacher's own expense, a standardized or criterion-referenced test for the content area.