Get the book, Grading Visible Learners: Learning with Fluidity Visit the website, www.CenterForCollaborativeExpertise.com About The Authors Dave Nagel and Bruce Potter are co-founders The Center for Collaborative Expertise.   Dave’s work focuses on helping schools and districts implement Visible Learning research, assessment and feedback, and effective grading reform at both school and classroom levels. He has supported schools in building impactful PLCs and is a thought leader in the PLC+ framework. Dave has authored seven books, 4 of which are best sellers–aligned to the PLC+ Suite of publications, and contributed to publications such as Principal Leadership, Educational Leadership, and The Learning Professional. He regularly presents at national conferences. Bruce Potter is a school administrator with over 30 years experience. Bruce began his career as a classroom teacher and has held leadership roles at the building level as a principal and at the district level as a superintendent for 11 years. Bruce brings a wealth of experience in implementing Visible Learning research, guiding districts, schools, and teachers in transforming their practices. His schools have earned national recognition for innovative approaches that redefine success for traditionally underserved students.       This episode of Principal Center Radio is sponsored by IXL, the most widely used online learning and teaching platform for K-12. Discover the power of data-driven instruction in your school with IXL—it gives you everything you need to maximize learning, from a comprehensive curriculum to meaningful school-wide data.Visit IXL.com/center to lead your school towards data-driven excellence today.