Four organizations with promising practices in teacher Professional Growth & Support have significantly raised outcomes for low-income students. The charter management networks, Achievement First and Aspire Public Schools, and the two reform organizations, Teach Plus and Agile Mind, have successfully increased student achievement with a…

Teachers may be the most important element of an effective school, but does that mean that K-12 improvement must wait on the ability of schools or systems to recruit, nurture, and retain outstanding teachers? Such a strategy implies that widespread excellence hinges on the ability of publicly funded school systems to attract more than 3.3 million…