2nd grade.................here's my take: a week missed can be made up, BUT little brains get rusty quickly, especially during these elementary years when so many novel concepts are being introduced, and understanding can be tenuous.........so, I do like for the child to practice key concepts during that week..........many parents naturally do this with the child all the time anyway, and will continue to do so on vacation. However, if the child has special learning difficulties, has previously missed a lot, or the parent does not know how to practice skills with the child naturally (I'm talking about just talking to the child, pointing out things, making connections for them, having them help read signs.........), then that week can be awfully hard to make up and can take a very long time. In addition, there will be some things that go on during that week that the child will miss completely. If the child has interested parents who take time with him (like all DISers!), then he most likely will have or will already have had similar experiences, and this will not leave holes in his knowledge/experience base that he needs to continue learning. The biggest hurdle, I think, for younger kids is how much they miss socially during a week...............life moves on without them, basically. A week to you and me is like a month or more to them............they may lose friends, social standing, may not understand a new term or missed a shared experience that leaves them feeling sort of out of it for a bit. No big deal for most kids, they may be upset a few days, but soon get back into the group. Shy kids, though, can really be set back by missing school.
I don't say any of this to discourage anyone, but just to help you understand what to do to help your child ease back in to school. I think that parents make up their minds despite what anyone else says, and I certainly will not tell other parents what to do with their own kids as long as the kids are safe and cared for. I do think, though, that more than one planned week missed per semester is really not a good idea........and really could hurt a child's education..........if the child gets too far behind, he won't catch up in that school year and that would be a shame..............also, summer school is not a substitute for missing the year, we do that as sort of a "safety net" to try to help the child, but at that point (unless the child got behind at the very end of the year), this child has been trying to learn without all the background he needed, and so likely has not properly learned concepts he's been present for after his absences...........
Family celebrations and vacations have tremendous value to children..........take your child, just be judicious about when and how often, and support your child when she re-enters school, emotionally and as a tutor if necessary.