The purpose of this manual is to outline a case approach to administrator training based on a study (presented in a companion volume) of four Teacher Corps projects and the role of principals in those projects. It begins with a discussion of the usefulness of a "case vignette" approach to training and then presents 21 case vignettes illustrating important issues emerging from the case studies. The purpose of these case vignettes is to emphasize the need for understandings, skills, and the resolution of certain issues by highlighting key events likely to occur in the early years of a project. Discussion questions and a diagnostic instrument to use in individual or group training sessions are included. The manual also presents a discussion of guidelines training and a selection of suggested resources to which trainers, project staff, or principals themselves might turn for materials that can be used in training sessions. (Author/JM)