Reviews the work of the Program Evaluation and Research Group (PERG) at Lesley College in evaluating informal, nonschool science programs for elementary students. Compares PERG's findings with other published literature about elementary school programs in extraschool science institutions and discusses issues that apply to all such programs from…

Examines how the aquarium has attempted to move from a transfer view of knowledge to a constructivist approach in its most popular general public program--the killer whale presentation. The process of change that staff underwent is similar to conceptual change processes among learners of science. Describes constructivist strategies of conceptual…

Describes the objectives and the impact of the Double Helix Science Club upon students, teachers, and the nonschool community. This club, which has become a major concern in Australia with a membership of over 16,000 and a magazine distribution approaching 30,000, provides an effective vehicle for many teachers and public servants looking to…