In the 1984-85 school year, the Pennsylvania Department of Education (PDE) began to actively encourage Pennsylvania school districts to reform their teacher supervision/evaluation (TS/E) procedures. To obtain data necessary for developing TS/E models, the PDE commissioned Research for Better Schools (RBS) to conduct a study of five school districts with TS/E systems. Three districts--Abington Heights, Pittsburgh, and Upper Perkiomen--used Madeline Hunter-based models. Suburban East Penn and rural Tamaqua were selected for their evolving alternative systems. Data were collected through onsite interviews with a total of 20 central office staff, 37 administrators, and 194 teachers; document analysis; and followup interviews with selected district officials. This document presents the five case studies, each of which provides information on school background; program development and implementation; program funding; staff development; evaluation procedures; the perceptions of administrators, teachers, and district staff; and implications and issues. Contains 14 references. (LMI)