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Mitchell, Richard J. – Science Probe, 1991
Reports on the results of an eighth grade student's experiments, conducted with a moving car, concerning the aerodynamics of a baseball in flight. Describes the peculiar diving ability of the split-fingered fastball, as well as the dancing and weaving effect of the knuckleball. (JJK)
Descriptors: Baseball, Elementary School Science, Elementary Secondary Education, Enrichment Activities
Peer reviewed
Direct linkJohnson, Carla; Fargo, Jamison; Kahle, Jane Butler – School Science and Mathematics, 2010
This longitudinal, five-year study of teachers and students who had participated in a systemic reform program in science explored if (1) teacher change in practice realized during a three-year program is sustained one, two, and three years following the program, (2) student performance on state science assessments two years following studying with…
Descriptors: Program Effectiveness, Educational Change, Longitudinal Studies, Achievement Gains
