For the schooltests:
it would work the same as seminars in the university,
everyone gets a seperate task, or a small group task.

Then noone will help you out for free.

Some small recent games of mine:
Griefer 4k http://damocles11.byethost9.com/griefer4k.html
Kobold 4k http://damocles11.byethost9.com/kobold.html
Cave 4k http://damocles11.byethost9.com/cave4k.html