From the Margins to the Center: Supporting Teacher Diversity, Quality, and Retention (M2C) provided evidence-based professional development (PD) that led to National Board Certification, an advanced credential for teachers (Absolute Priority 1). The program directly advanced the learning and effectiveness of more than 1,500 teachers, of whom at least 50% were teachers of color (ToC) and 70% were teachers serving high-need students. This support improved learning outcomes for 90,000 students (45,000 each in years 2 and 3) through improved teaching. The program evaluation will provide replicable and scalable learning on solutions to longstanding workforce challenges of quality, retention, and diversity.
