Book excerpt: This volume establishes a dialogue between the theoretical and practical components of teaching, between the barriers that inhibit changes and the factors that help overcome those barriers. It presents theories that are already at the heart of modern educational practice and shows how these theories have been used by teachers and teacher trainers. The dialogue in this book takes place within, and is informed by, a multitude of disciplines including philosophy, communication studies, technology, composition, rhetoric, and education. The authors address the practical issues of their chosen theoretical perspectives and reflect on how those perspectives manifest themselves pedagogically. Each chapter is followed by a brief response that draws on the experiences and expertise of classroom teachers and theoreticians. As such, the dialogue between the theory and practice of change is delineated between the chapter authors and respondents.