This book argues that competency-based practices are the key to creating school systems that meet students' academic needs and prepare students to effectively communicate, collaborate, and self-regulate. With comprehensive coverage of competency-based practices and recommended steps to explore new approaches to instruction and assessment, Marzano Mastery Approaches provides readers with the tools to guide their schools through the necessary decision points for ensuring a profoundly improved and profoundly impactful educational experience. K-12 school leaders can use this book to: (1) Consider seven key domains of implementation for competency-based education; (2) Restructure assessment, grading, and reporting systems for mastery; (3) Formalize student outcomes for academic content, cognitive and metacognitive skills, and the self-system; (4) Personalize the teaching and learning process and encourage student agency in the classroom; and (5) Shift the roles of educators away from instructing content and toward facilitating learning.