In this refreshing addition to differentiated learning literature, Rick Wormeli takes readers step-by-step from the blank page to a fully crafted differentiation lesson. Along the way he shows middle and high school teachers and behind-the-scenes planning that goes into effective lesson design for diverse classrooms. Rick demonstrates how to weave common and novel differentiation strategies into all subjects and offers clear advice about what to do when things don't go as expected. Based on nearly thirty years of experience as a teacher and instructional coach, Rick's thoughtful and imaginative classroom accommodations will help teachers succeed with advanced students, struggling students, English language learners, and students across the multiple intelligences spectrum. A thorough and practical guide, this book provides an overview of the cognitive science behind differentiation as well as a more than two-dozen tools that make differentiation doable in the classroom. This is an essential resource for all reflective teachers.