I'm sorry I can't help an Oilers fan....
Kidding. There are plenty of Canadians here, I'm presently working with about ten of them.

The most active social group is called Canadians in Qatar. They put a few events together every year, I believe the Canadian Ball is the highlight. Pretty fancy, but a great way to meet people.

You can find them online here: http://canadiansinqatar.com/

I don't have kids, am afraid I can't help you with the school question. Best of luck on your journey!