Welcome

Hello,
I'm a physics teaching assistent for undergraduate physics for non majors. Most students that I see are chemistry and biology majors often looking to go to med school.

To get started with my blog I already have a problem that came up last quarter and I'm soliciting advice on how to avoid the same problem again.

Here's what happened; each week the students take an in class quiz. each T/A grades one quiz each week so we all grade one of the quizzes for the quarter. I graded my quizzes and they all got returned to the students. Shortly afterward one student said that she did not receive her quiz back. Looking through our records we found no evidence of her quiz at all. The only possibility could be that she did not take the quiz and is lying to get a better grade or that we lost the quiz.

I looked everywhere, but could not find her quiz amoungst my stuff. The student was in my lab section and I've had a lot of interaction with her so I feel that she is a hard working honest person. I think that we lost her quiz and now we have to figure out how to accurately assign her a grade for her work. The other consideration is that she thought she did very well on the quiz and hoped it would bring up her grade.

Possible solutions? Renormalize her grades so as to factor out her missing quiz?
Ask her to retake another similar quiz?

How could this problem have been addressed sooner?