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DeBruin, Jerome E.; And Others – Science and Children, 1979
Describes a 10 week Saturday program in open-ended, hands-on science activity. Sessions emphasize three stages of learning: (1) messing about with concrete materials; (2) introduction of new equipment and probing questions; and (3) large group sharing session. Discusses the teacher's role and extended activities. (MA)
Descriptors: Curriculum Development, Curriculum Enrichment, Discovery Processes, Elementary Secondary Education

Wagner, Paul A. – Science Education, 1983
Explains cognitive basis for change in science paradigms using Watson-Crick DNA model to illustrate concepts of "normal" versus "revolutionary" science. Examines these concepts in light of teacher preception of science, and discusses implications for the practice of science education. (JM)
Descriptors: Cognitive Processes, Convergent Thinking, Critical Thinking, Curriculum Development