The New York City Staff Development Program for Bilingual/English-as-a-Second-Language (ESL) Teachers and School Building Supervisors was designed to provide public school personnel working with limited English proficient children in grades five through eight with an overview of issues pertinent to the instruction of this population. The program served 453 teachers and 50 administrators from 32 school districts in a series of 6 half-day training sessions. Evaluation of the 1985-86 program was accomplished through teacher questionnaires, workshop evaluation forms, interviews, and on-site observations of training activities. It found that the program was successful in achieving most of its objectives. In the opinions of both the participants and the evaluation team, the program's major strengths were its overall organization and administration of training, presenters' enthusiasm and preparedness, links established between theory and practice, materials provided in workshops, and realistic demonstrations of instructional strategies. The major criticism was of the workshops' brevity. Recommendations for improvement include follow-up conferences for specific content areas and implementation, increased workshop time for presenter-participant interaction, inclusion of materials and presenters for those serving the Haitian population, and elimination of a proposed participant achievement objective, for practical reasons. (MSE)