Describes the articles in a special issue of Teacher Education prepared in collaboration with the National Center for Science Teaching and Learning. The issue articulates important visions of science curriculum teaching which incorporate both the sociological critique of scientific knowledge and the constructivist view of learning. (SM)

Describes efforts in the reform of science education, noting the importance of changing preservice and in-service teacher education. The article examines three national systemic reform efforts and discusses implementation efforts in Iowa. It also discusses Iowa's teacher preparation and offers assessment information arising from Iowa's efforts.…