This formative evaluation of the Atlantic Street Center's Pre-Teen Bridge Program (P-T Bridge) focused on the academic support and prosocial skill development components of the program. The academic component included one-on-one tutoring, and the prosocial skill component included activities and materials designed to improve social and communication skills. Objectives of the evaluation were to: (1) assess the effectiveness of program activities and materials; (2) recommend activities and materials which should be retained, revised, or dropped; and (3) recommend a design for subsequent summative program evaluation. To gather data, key professionals associated with the P-T Bridge program were observed and interviewed. A total of 21 youths serviced by the program were interviewed, as were several tutors and others familiar with the program. Over 30 studies and reports related to the youth population, and school data on the 25 participants for the period 1988-89, were reviewed. Findings suggest that the academic support and prosocial skill development components must be retained, periodically revised, and evaluated in an on-going manner, if the program model is to have a measurable positive impact. An appendix provides a multidimensional operational definition of at-risk students. (RH)