I gave my students a take home exam over spring break. (This is normal where I teach) One of the questions was particulary difficult. It came down to a factor of three in the solution. That factor inexplicably appeared with no justification on many of their exams. I intend to have the students I suspect of cheating come to my office to solve the problem on the board. What would you do?
Leave it. Life’s hard enough, just let em have the W before the real world bursts their bubbles more.
Wait, you gave them work over their spring break? What the fuck?? Let them have a damn break!