A simulation of a Congressional hearing on national population policy is provided. University students and community members decide on a resolution introduced in the United State Senate in 1971 which proposed the stabilization of population growth. Students organize themselves into four interest groups--Black Americans, business-industrial, conservation-environment, and women's rights--and present testimony before the hearing. The teacher is required to recruit outside persons as Congresspersons who will eventually decide whether to recommend the resolution to the Senate. Background information on United States population growth and projected future population increases are provided in the unit. Three evaluation methods, a list of possible associated activities, and a bibliography for each of the four lobbying groups are also included. (DE)