He may not fire them, but he sure could TERMINATE them!
(Incredibly weak joke. I’m so sorry. Forgive me.)
For a teacher out there who may be able to shed some light ....Are the hours worked in a normal required (as per the schools curriculum schedule) week, included in any wage/salary negotiation. That is leaving extra curricular activities aside.
As, as far as I am aware, homework has always been part of the learning curb of not only education but discipline (oops better get modern) time management.