This text contains brief teaching cases from middle and secondary classrooms, grouped by theme, to be used as a supplement in middle and secondary methods and curriculum courses. The cases in this collection are problem-based, engaging stories of authentic classroom situations. Because the situations are generic, they are relevant to teachers and prospective teachers in grades 6-12 throughout the full range of subject matter areas. The approach of the text is to invite prospective teachers are invited to become active inquirers in their study of teaching.