The USMES Guide is a resource book containing information about the USMES project's background, goals and hypotheses, and methods of operation. Papers on real problem solving, USMES classroom strategy, and the Design Lab manual are included; the development, implementation, and evaluation programs are described. Also included are descriptions of the various USMES units, a complete list of background papers for teachers, a list of "How To" cards for students, and a bibliography of other reference materials for both students and teachers. Charts are used to indicate comparative strengths of the units in terms of real problem solving, mathematics, science, social studies, and language arts. (DT)