I too took the kids out of school for a vacation/cruise and only did that once. I think its a tough choice, but sometimes missing a day or two of school is the only drawback. You need to talk to the teachers and school and make a decision from what they inform you. There are school breaks that you can do the same thing, usually, it all depends on other details. I've heard of some people that always take the kids out of school for vacations and I don't agree with that, but sometimes you just have to. I think it also depends on what type of student the kids are, can they easily make up what they have missed, so its a kind of personal choice.