You should meet a student who is 8 years old and above for 45 minutes who has errors in writing for example his error was "This is monkeys" and the more errors you write the more grades I will get so write so many errors for the student please. And then you will write that this mistake is knowing by the professor .... in his .... theory. Maybe give the student a paragraph to write, video tape him while doing that, take photo of the writing, identify mistakes, explain them. Check rubric and instructions.