This implementation manual has been developed to describe four model mathematics and science programs designed to increase African-American students' interest in mathematics and science. The manual will help affiliates of the Urban League to mobilize existing community resources to achieve the goals of the national education initiative. The four models described and illustrated in this manual are (1) an academic-assistance program that develops after-school tutorials in the Chicago (Illinois) Urban League Black Churches Program; (2) collaborative efforts by community-based organizations and a school district in the Tri-County (Peoria, Illinois) Urban League's Tommorrow's Scientists, Technicians, and Managers (TSTM) Project; (3) parent involvement and parent education in the Indiana Urban League's Family Math Program; and (4) the use of mathematics and science mentors from the black community in the Quad County (Illinois) Urban League's TSTM Project. Information for each model includes a program description, curriculum-development and curriculum-use training methods, program-evaluation and program-impact analysis, program effectiveness, and program support. Resource materials for each model are included. (SLD)