How the world’s best-performing school systems come out on top – To find out why some schools succeed where others do not, McKinsey studied 25 of the world’s school systems, including 10 of the top performers. The experience of these top school systems suggest that three things matter most:
Getting the right people to become teachers;
Developing them into effective instructors; and
Ensuring the system is available to deliver the best possible instruction for every child.