Research continues to confirm that without "excellent" teachers consistently, most students who start behind stay behind, and too few middling and advanced students leap ahead. Even solid teachers who achieve one year of learning progress leave achievement gaps intact. Schools that "consistently" provide all students with…

Research shows that professional learning can have a powerful effect on teacher skills and knowledge, and on how well students learn. To be effective, however, professional learning for teachers needs to be conducted in the ways that it is in many high achieving countries--continuously, collaboratively, and with a focus on teaching specific…