Irony is that Arab kids are extremely racist. I wanted to put my kids in an Arabic school. I went to one of them withmy 3 yr old son. Spoke to the principal and was almost certain to put my son there, till the time I was getting out of the school and came across a few kids playing. They all started shouting 'Hada Hindiya' 'Hada Hindiya' (this is an Indian). The way they said, made me certain that my son will not be amongst them. A friend's wife is a teacher in an independent school. She keeps telling the stories of the kids there. One of them ( a fifth grader)slapped a Sri Lankan teacher coz she shouted at him. The kids fight coz some one called them a Sudani, or a Masri, or a Hindiya.
So my suggestion is refrain from letting your kids mingle with Arab kids.