The National Center for Research on Teacher Education held a retreat for teacher educators in programs connected with the Center's research. The proceedings, which enable a wider audience to learn about the deliberations, combine summaries of interactive sessions with presented papers. Interactive sessions focus on two issues: expertise in teaching and the role of experience in learning to teach. Papers present issues and questions that emerged from exploratory interviews conducted by Center researchers with teacher educators at 22 different teacher education programs. The proceedings also include an overview of the Center's research and a paper on how the Center is studying changes in teachers' knowledge, skills and dispositions. The proceedings close with a conversation between Judith Lanier, President of the Holmes Group, and Harry Judge, Head of the Faculty of Educational Studies at Oxford University, on teacher education reform in the United States. (Author)