I suspect a student is changing her answers on graded assessments after she receives them back with a grade. The first time I believed that I made an error when grading her test, but the second time the answer appeared to be changed. What is the best way to handle the situation? I thought about making a copy of her future tests before returning them so that I would have proof of her original answers.
If I were in this situation I would do this. There were many good suggestions in this post.
I don't agree with this. If a student presents what looks to be like a correct answer then it should always be taken into consideration.