Through a rich combination of analysis, activities for team and individual study, and a case study, this book guides educators in using the lens of Cultural Proficiency as basis for creating school-wide conditions that make the Common Core accessible to all students, including those groups that have been historically underserved. The book includes a number of reflective and professional learning dialogic activities, tools, and case stories to guide educators and school leaders to understand their own assumptions, know their values relative to equitable issues, create change within their own practice, and create teaching and learning environments that are relevant and rigorous for all learners.