I would appreciate a feature in the gradebook whereby grades would be locked once they were entered. Changing the grade would require the teacher to unlock it.
Are you trying to prevent TAs from changing grades? And, if a class has two teachers does the lock by Teacher A block Teacher B?
I am trying to prevent myself (as the teacher) from inadvertently changing a students grade once I have entered it. I mistakenly have changed a student's grade because I hit a wrong key, bumped the keyboard, or was in the wrong grid. When this occurs there is no way to get the previously entered (and correct) grade back. This has happened to me on numerous occasions.
Tracy, you said there is no way to get the previously entered grade back; have you checked out How do I view the history of all grading changes in the Gradebook? and How do I view the history of all grading changes in the New Gradebook? This should allow you to see the grade that was in the cell before you bumped the keyboard or mistyped.
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