As classroom teachers progress through their teaching careers, they may encounter stressful transitional periods. At about the tenth year, they decide whether to remain in the occupation and which teaching situation they should consider permanently. At about the twentieth year, they may evaluate their careers and revitalize themselves. There appear to be four major transitions in a teaching career: the first year, the tenth year, the twentieth year, and retirement. Each transition may result in the teachers' complete reevaluation of personal and professional goals. The teacher educator should assist the teacher in personal insight and self acceptance. The teacher's use of the same teaching methods over several decades may result in an inability on the part of the teacher to understand the changing values and intentions of students. In an effort to help teachers understand the stages and transitions in their teaching careers, a graduate course has been developed at the University of Houston. Case studies are provided to elicit a subjective understanding of the personal and emotional aspects of midcareer crisis at various transitional stages. (Author/JN)