This is the story of a teacher education initiative. The project A Community of Inquiry in Teacher Education (CITE) has aimed to transform learning to teach from an experience based on the acquisition of skills to one centred on the cultivation of certain dispositions. As small-scale reform initiatives go (36 aspiring teachers each year) CITE has had a long and vibrant life, despite some inevitable struggles. It is the longevity of CITE that prompted the authors to turn their inquiries about teaching and learning to the challenges of sustaining their own project. The result is a collection that chronicles some of their own experiments, deliberations, and the lessons learned through their many experiences. It is more accurate to say that Collective Improvisation is many stories, not just one. That is because this book represents the perspectives of university-based instructors, school partners, former students, and graduate student researchers, each of whom contribute a different and valued voice to the whole composition.