Many organizations, both public and private, are involved in the current push for reform in science and mathematics education. This guide to some of the players in science and mathematics education is selective, focusing on key players at the national level. It is designed to be used by teachers and parents to orient themselves to the ongoing reform efforts and to use the resources available in their areas so that they may make their concerns and interests part of the changing landscape. The organizations discussed are National Council of Teachers of Mathematics (NCTM); Project 2061 of the American Association for the Advancement of Science (AAAS); National Research Council (NRC); National Committee on Science Education Standards and Assessment (NCSESA); Mathematical Sciences Education Board (MSEB); Scope, Sequence, and Coordination of Secondary School Science (SS&C) coordinated by the National Science Teachers Association (NSTA); Equity 2000, a program of the College Board; Department of Education; Eisenhower National Program, including the Eisenhower National Clearinghouse and the Regional Consortia for Mathematics and Science; Regional Education Laboratories; National Diffusion Network (NDN); and National Science Foundation (NSF) supporting Statewide, Urban, and Rural Systemic Initiatives. Contains 17 references. (MKR)