Good points, all of which I agree with, and I'll check out those sources. The book I snapped the pic from was Equality and Achievement, which is similar to the book you're linking to.
"reviews a lot of research studies from a lot of countries and suggests that that view, although it is conventional wisdom, grossly underestimates the importance of schools. "
I do think it's important to note though that you can believe that the achievement gap is mostly coming from home factors, while also not underestimating the importance of school. That is, you can believe that all kids are basically receiving an equally crappy education. You're certainly right though about the kids from the worst home conditions getting stuck with the worst teachers within schools.
"reviews a lot of research studies from a lot of countries and suggests that that view, although it is conventional wisdom, grossly underestimates the importance of schools. "
I do think it's important to note though that you can believe that the achievement gap is mostly coming from home factors, while also not underestimating the importance of school. That is, you can believe that all kids are basically receiving an equally crappy education. You're certainly right though about the kids from the worst home conditions getting stuck with the worst teachers within schools.