Now in its second edition, this comprehensive handbook emphasizes research-based practices for educating students with intellectual disability across the life course, from early childhood supports through the transition to adulthood. Driven by the collaboration of accomplished, nationally recognized professionals of varied approaches, lived experience and expertise, and philosophies, the book is updated with new theory and research-based practices that have been shown to be effective through multiple methodologies, to help readers select interventions and supports based on the evidence of their effectiveness. Considering the field of intellectual disability from a transdisciplinary perspective, it integrates a greater focus on advancing equity in educational outcomes for students. This book is a professional resource and graduate level text for preservice and in-service educators, psychologists, speech/language therapists and other clinicians involved in the education of children, youth, and adults with intellectual disability.