This book is based on two important assumptions about teaching physical education. First, instruction is most effective when it occurs within a coherent framework known to the teacher and communicated to students. Such frameworks will be called instructional models in this book, with eight models for physical education present in Part Two. That part of the book will provide you with detailed plans for designing, implementing, and assessing each model. The second assumption is that teachers must understand foundations for model-based instruction in order to select the best model to meet the stated learning goals in a unit, match student developmental readiness, and manage the learning environment. Helping teachers gain that understanding is the purpose of Part One. This website contains resources and materials to provide real-life examples of the eight models listed in the text and to share articles written by scholars in the field.