is to MAKE SURE the school is accredited. Otherwise, universities in the US will not accept the transcript. It won't matter for the younger children, but for the older one I would work to get him into an American system school. If not ASD, then ACS, International School of London or George DeBakey. I know ASD is accredited, but don't know about the other. Otherwise I would consider homeschooling through the K-12 program. Apply for ASD as in the upper grades, it is much easier to find places.