Free: Contests & Raffles.
Can always get the teachers to give you his work for the days he will be gone, then each night after the hunt, he and you can work on it. Cant think of a better addition to a great bonding experience.
Tell her hes taking time off and that's the way it is.
I don't let the schools hold my son hostage. If he does his work he gets to go. I take him out for fishing and hunting. Teaching him that you are only young once.