I will also be pulling my DS 5yrs out of Kindergarten in Dec. I used to work at the school he is attending as a special education teacher. (I'm on childcare leave with my youngest.) I intend on doing some very creative lessons while we're gone like polling people and asking them their favorite ride (with choices of course). THen, we will do a bar graph. Other math lessons will be figuring out how many people fit on a ride if there are 2 people per seat and 10 rows of seat. We will also be keeping a journal which he will help draw the pictures or write what he can. We will take many pictures and write about one or two. We will also read many stories, information about Disney world etc. In EPCOT, I plan to do a lot of science activities and keep a science journal. I'm sure his teacher will give him some work to do as well. When DS gets back, he will have a lot to show and tell (another important skill - communication).
Personally, I believe school is extremely important but so is valuable family time. Think about it, what do you remember more school or family vacations? Although they are fun, they are important social bonding moments when our kids really do learn a great deal about the world around them. These are life lessons which are hard to replicate in the classroom.
By the way, my parents pulled my brother and I out of school numerous times for family vacations. My brother and I both went on to college, received masters degrees and value learning. We just had more fun!!!!