Anonymous wrote:If your kid is academically advanced, it will be fine.
If not, you will know by the end of 6th grade.
Not our experience. Our eldest's grades were excellent at BASIS in 5th, 6th and 7th grades. Even so, he disliked the program more with each passing grade. By the fall of 7th he was begging to leave. He wanted to attend a school where he could do his favorite ECs (playing wind instrument, ceramics and high-quality theater) with classmates. And he didn't want to have to take a beginner's class in a language we speak at home in 8th grade to get on track for AP work in that language. Our younger child, in the year behind the eldest, was more OK with BASIS, although his grades weren't as high. But we burned out on schlepping him to serious sports practices and games around the Metro area. We left for a public middle school in VA, renting there. We're back in DC now for a private parochial HS for both.