A look at Alpha School, a network of private schools that claims to teach kids 2x as fast using AI; data shows ~50% of K-8 students missed this goal in math (Dana Goldstein/New York Times)

Alpha School, a private network of schools that claims to teach children twice as fast using AI, is expanding into public education despite data showing roughly 50% of K-8 students missed the math goal and some parents and educators saying it does not live up to the hype.