Yes! These kinds of initiatives are not focusing on tutoring the ”ahead” kids as some think, they are about tutoring the “behind” kids because teachers cannot p

Yes! These kinds of initiatives are not focusing on tutoring the ”ahead” kids as some think, they are about tutoring the “behind” kids because teachers cannot possibly overcome multiple grade level differences using classroom differentiation. So as you say, the teaching example in the article is entirely missing the point. The real question is whether you can get Bloom’s 2-sigma effect without a human tutor (for social accountability) when the student is disinterested. I think it will take more than just a chatbot to make a student feel like somebody cares whether they get it or not.