This introduction presents an overview of the key concepts discussed in the subsequent chapters of this book. The book introduces central premises of culturally responsive teaching (CRT), drawing upon the work of leading theorists in general education. It describes how CRT unfolded in the West Side, North Side, and South Side choirs, respectively. The book also describes some cases in which CRT did not unfold smoothly as well as learning experiences students did not receive as being responsive to their cultural backgrounds or identities. It offers interpretation and discussion of themes that emerged across the three choirs, and discusses implications of these themes for teaching practice. CRT is a pedagogical approach that uses "the cultural characteristics, experiences, and perspectives of ethnically diverse students as conduits for teaching them more effectively". The term responsive emphasizes that CRT evolves in response to particular learners, implying a student-centered approach.