what software are you using and how is the class structured? It sounds like this might be a rotating group of students all using the same ipads? Does the school have access to some sort of storage medium that requires unique (per student) login credentials that the students could save their files to?
Honestly executives and board members who receive performance bonuses and golden parachutes should carry extra liability, such that these perks can be denied or even clawed back (and used to help the damages) when their decisions have these sort of outcomes. Nothing wrong with making more when things go well, but if you’re going to take a larger piece of the pie, then you need to be prepared to take a smaller piece when things go wrong (aka, cut executive pay before layoffs, etc.).