Spike.
My info is 3 years old, but home schooling, like many things here is tolerated but technically not allowed. The same as having someone else's maid work in your house a few days a week, or living with your girlfriend. It will be an issue only if the authorities get involved somehow and have to make a decision. I know of home schoolers in Dubai, we have a maid who is not ours and plenty of couples live unmarried. As CC said, it is very important that your wife likes it here, it will be cheaper to bring her here than to send her home after 6 months because she hates it. It is a lot harder on them than us. Get her to look at
http://www.expatwoman.com she can ask Qs on the forum there. 5 kids..you stud! you will want to home school them as EK pays for the first 3 only (or is it 2?) any way the ones they don't pay school fees for will cost you a month's sallary each per year.!!!