Like medical and legal professionals, educators need and deserve access to continual and high-quality professional education. EDC develops, implements, and evaluates professional development programs for teachers and administrators at every stage of their career growth—from university-based, pre-service programs to continuing education programs integrated into the daily work of experienced teachers. In the U.S., many of our professional development projects focus on helping teachers and administrators deepen their content knowledge through immersion in rigorous challenges and close analysis of student work. Many of our global projects focus on helping educators integrate active learning approaches into more traditional classroom practices. On a broader level, we work to restructure professional development systems by creating "communities of practice" within and among schools.