Please remember to follow the guidelines and review structure in LessWrong's SKILL.md that I attached.
I'm quite interested in this exact use case, but can't seem to find the SKILL.md file elsewhere in your post or in the comments. Would you mind linking it?
While I agree with this (and I think you meant they are quite often not getting marks?), this would imply that the students had to read enough of the material to intellectually engage, form an opinion or a view of it opposing their teacher, then proceed to refine that view in the act of 'doing' the assignment. That is something one-shotting (not necessarily prompting an AI and going back and forth with it, hardening your opinion and idea over time) an assignment wouldn't provide.