What can I do about a zero?
Talk to your student first about the assignment and if they remember doing it. The assignment may be in our no name pile and the grade can be updated quickly. If the assignment was not completed or not found then you can ask us for another copy to be completed and turned in before grades are due.
Why is this assignment missing?
Missing assignments are more than likely "no-namers" or work that was turned in without a name. Asking the student is always a good first step in finding the work. If the work was misplaced it can be turned in as soon as it's found. If the work has gone completely missing then ask the teacher for an extra copy for the student to redo.