Hi. Bliss. I could imagine a situation where there are some teachers who only provide information while other teachers in the same school teach and test. These testing teachers could be called grading teachers. I say this because there are classes and even schools that do not grade. They could be called nongraded schools or pass-fale classes. In this way, I think we may be able to understand the term you ask about.

You created it? My guess is you are referring to teachers who grade the exam papers, give your scores, yes?