"Future Scenarios in Communications" is one of the "Preparing for Tomorrow's World" (PTW) program modules. PTW is an interdisciplinary, future-oriented program incorporating information from the sciences and social sciences and addressing societal concerns which interface science/technology/society. The program promotes responsible citizenry with increased abilities in critical thinking, problem-solving, social/ethical reasoning, and decision-making. Compared in this module (for students in grades 7-8) is the development of two communications systems, past and future, and their impact on changes in life-styles. The module is comprised of two sections, the first examining development of the telephone system in the United States and the second examining the development and applications of the computer. Futures forecasting techniques (Delphi probe, trend analysis, cross-impact analysis, scenario writing) are used in both sections. The teaching guide includes a discussion of the socio-scientific reasoning model (theoretical basis of the PTW), module overview (purpose; strategies employed; module structure/objectives; and its use in the school curriculum), and suggested instructional strategies. A bibliography and list of Kohlberg's stages of moral development are included. The module may be used as a separate unit of study, as a mini-course, or incorporated into social studies, language arts, history, or general science courses. (JN)