This casebook is ideal for preservice teachers to use as a problem-solving vehicle for science teaching and learning at the middle and secondary levels. It assists in developing an understanding of prevailing instructional practices and challenges current traditional approaches with convincing arguments that are supported by research. Ten of the twelve chapters contain 3-4 cases each; the initial chapter introduces the case method and the final chapter describes how to develop a cases based on teachers' personal experiences. The book is intended for beginning and experienced middle school and secondary science teachers, science teacher educators, science teacher mentors, and school administrators. It is also appropriate for secondary education courses at the graduate level.