This or that?

Who teaches courses? (they can be educational or for fun) An instructor or professor?

Who is in charge of a university? A dean or headmaster?

Who administers tests? A dean or examiner?

Who teaches classes at a university? A teacher or professor?

Who typically teaches in primary and secondary schools? A coach or a teacher?

Who is in charge of a primary or secondary school? A headmaster or examiner?

Who teaches a student individually outside of class? A tutor or dean?

Who teaches a group of students how to play a sport? A tutor or coach?