The aim of the Math/Science Workshop Program was to improve the performance of the University of California (UC) Berkeley minority students in freshman- and sophomore-level mathematics and science courses, and thereby increase the number of such students who continue on to complete bachelor's degrees in "mathematics-based" fields. It is also intended to serve as a model affirmative action program for other institutions seeking to improve the performance and persistence of minority undergraduates in scientific and technical fields of study. This report contains an executive summary and: (1) project overview; (2) project purpose; (3) background and origins; (4) project description; (5) outcomes and impacts; and (6) summary and conclusions. Findings show that the project (which provided supplementary instruction, academic counseling, and other services) appeals to well-motivated, high achieving students. It sets high goals for them, teaches them to work both independently and in groups, and in so doing, prepares them for the kind of work conditions that are frequently encountered in research laboratory and high technology think-tanks. The program demonstrates that Blacks and Hispanics can compete successfully with the nation's very best students both at UC Berkeley and elsewhere. (JN)