This how-to volume combines the most helpful professional development skills and strategies with the most relevant research and theory in pedagogy in the context of student diversity. It includes step-by-step instruction on how to train teachers of an increasing multilingual and multicultural American school population. School staff is increasingly under pressure to examine their instructional practices in their classes. The No Child Left Behind Act of 2001 mandates that schools held accountable for students' adequate yearly progress. This state-of-the-art book contains effective practices and a framework for all teachers to understand the language and curriculum needs of English language learners, the successful professional development models to meet those needs, and the training programs and school settings to support their ongoing learning. The volume includes profiles of highly successful pre-service and in service programs. A glossary at the end of the book contains definitions of terms and concepts. Helpful appendices show teaching practices with diverse students. This volume pushes the study of training teachers into new applied areas. It is indispensable reading for teacher trainers, teachers, researchers, school administrators, curriculum and staff development specialists, and students of all teacher preparation programs.