Actually I think more effective is the 'new student and the student-who-recently-completed the course' because the old student remembers his misconceptions. Whe

Actually I think more effective is the 'new student and the student-who-recently-completed the course' because the old student remembers his misconceptions. Whereas the professor suffers from the curse of knowledge: https://en.wikipedia.org/wiki/Curse_of_knowledge https://en.wikipedia.org/wiki/Curse_of_knowledge