Don't ASK them, TELL them.
Just replying to you because yours is the shortest response to quote.
I'll give my views.
1) It is the parents RIGHT to remove their children from school if they want to for a vacation. You do not HAVE to tell the school anything.
2) Likewise it is the school boards RIGHT to set guidelines, and if a student does not meet those guidelines it is their RIGHT to fail / hold them back. As long as they apply these guidelines consistently and they are in accordance with state and federal laws, thems the breaks.
So, whats the sane common sense answer?
Look at your school districts guidelines. If you feel that you can remove your child from school and not risk having him or her left back (or suspended) then you have passed test #1
Second test, as a RESPONSIBLE PARENT, ask yourself if your child can afford to mis s school. Lets be realistic here people. Riding Test track is about as educational an experence as driving to the grocery store. Your kids are not going to be learning much if anything while on vacation at WDW. They don't want to do it, and chances are you will not want to do it either. They may watch some films about other countries, maybe visit some displays, but thats about it.
I took my kids out of private school when they were in K and 1st grade and I caught hell for it. The offical school policy was that they would not send work with the kids to do over vacation. The teachers, risking disciplinary action from the nuns in the office, snuck me the work so my kids could keep up.
Now my kids are in public school. They require a note/form when the kids will be absent. My ex plans on taking them out for a few days in December. For now thats OK, but as they get older and schedules (sports, scouts, classes, etc) get tighter I have the feeling that they will be going on "offical" vacations only. As it is, my 8 year old (then 7) was quite upset last winter because our long planned WDW trip happend to be on the same weekend that her Scout troop had their winter camp planned.
-dave