"Preparing for Tomorrow's World" is an interdisciplinary, future-oriented program which incorporates information from the sciences and social sciences and addresses 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. "Dilemmas in Bioethics" is designed to introduce senior high students (grades 10-11) to a sample of critical bioethical issues by considering moral dilemmas and knowledge of biomedical advances. This teaching guide discusses the purposes of the student module, strategies employed (focusing on the dilemma debate/discussion technique), module structure and objectives, and use of dilemmas in bioethics in the school curriculum. The module may be used as a separate unit of study, as a mini-course, or incorporated into existing subject areas, including biology, genetics, civics, history, philosophy, anthropology, health education, and family living. Discussion of the final, optional student activity (developing guidelines for human experimentation), chart indicating moral issues (as defined by Kohlberg) contained in the 12 dilemmas presented in the student material, and a bibliography on selected bioethical issues are also included. (JN)