To follow up, DS is thriving at AltSchool. They do rarely entertain the word gifted (though its not forbidden) you won't find it on the website. I am pretty certain that they nevertheless have an inordinate number of gifted kids there. They resist (or keep internal) analyzing their data, even though they have hundreds of MAP percentile scores. Perhaps their marketing department advised them to avoid the word gifted. Who wants a product that is sold to 1% of the population. And, they have, well I think the term in Silicon Valley is 'pivoted', away from any 8:1 or 10:1 ratio. (Hattie says its not much of a factor. But the devil is in the details. Their CEO does use Hattie's book http://visible-learning.org/). HOWEVER they go to great lengths to hire great teachers. Again, DS is thriving there. His teacher sent him a very thoughtful and insightful note for him to think about over the summer. They are open to acceleration. They do put DS 2 years ahead in math, so we decided not to push it.