In these pages, Kelly Morgan presents a compelling case for implementing a mastery learning science classroom and then shows us how to do it. Using research-based student performance data, Morgan compiles impressive statistics that support her assertion, “Mastery learning results in improved student learning and motivation.” Showing challenges as well as benefits, this text covers a step-by-step implementation from the traditional classroom to a mastery classroom, along with sample worksheets, checklists, a teacher grading grid, and additional resources. Beginning with the author’s personal experience in Chapter 1, “Why Did I Completely Change My Classroom?” mastery learning is then defined, approached using research-based techniques, and viewed through practical applications that will answer every question a teacher, parent, or principal might have about this methodology. And for the details, a chapter called “How Mastery Learning Might Look” provides a flexible model for readers to use or modify to fit any grade level or content area.