How about, "Dear School Administrators,
We are taking our kids out of school for ____ days from ___ (Month) to ____ (Month) so that the family can enjoy lower crowds and less expensive lodging at Walt Disney World, in Florida. The educational lessons of this family vacation will include:
1) economics - the importance of maximizing savings on family vacations
2) geography - the location, weather, and municipal infrastructure of Orlando, Florida
3) math - how quickly costs can add up for food, lodging and souvenirs
4) sociology - the diverse nature of people who attend theme parks
5) psychology - methods used by Disney to induce higher spending in their theme parks
6) English - grammatically correct signs and warnings on thrill rides
7) history - many Disney rides are based on myths and legends, and several are based on bona fide historical American artifacts and personalities
8) physics - actually experiencing positive and negative G-forces on several thrill rides
9) science - discovering the effects of dehydration and lack of sleep
10) foreign languages - hearing several languages in use by actual foreigners
11) biology - seeing, smelling, and possibly depositing stomach contents on the sidewalk after thrill rides
12) engineering - viewing and actually riding highly engineered thrill rides
13) astrology - examining and describing stars seen on the "Hollywood Walk of Fame" in DHS
14) art - experiencing actual animation instruction and getting a back-lot view of motion picture production
15) phys ed - walking approximately seven miles per day.
I hope you agree that, based on this ___ week visit, my children should be awarded a bachelor's degree in General Studies from the nearest state college. If that is not possible, please provide instructions on how my children can complete any additional requirements of their regularly scheduled classes (as if their classes could possibly cover anything remotely as comprehensive as this vacation will expose them to!).
Very truly yours,
Mrs X"
That should get the ball rolling for you...