This guide is a companion volume to Using Assessments to Teach for Understanding: A Casebook for Educators, which presents 15 vivid cases designed to help teachers grapple with the challenges of using multiple assessments to improve teaching and learning. The Facilitator's Guide to Using Assessments to Teach for Understanding: A Casebook for Educators provides analysis, discussion questions, and teacher notes to help you use the cases in teacher education classes and in professional development workshops. This much-needed resource provides authentic voices and experiences from elementary, middle school, dual language, and special education classrooms, and spans different content areas across the curriculum.