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A Twelve-Year Longitudinal Study of Science Concept Learning

Cornell University

Dismas Musonda

University of Zambia

Audio-tutorial science lessons were provided to 191 first and second grade children (instructed), and interviews were conducted periodically to assess changes in science concept under standing from grades one through twelve. A similar sample (n = 48) not receiving audio-tutorial lessons in grades one and two (uninstructed) was also interviewed periodically from grades one through twelve. Instructed students showed substantially more valid concept understandings and fewer invalid concepts (misconceptions) than uninstructed students in grades two, seven, ten, and twelve. Concept maps prepared from interview transcripts showed wide variation in knowledge for both groups, and concept maps scored using a scoring algorithm also showed significant differences favoring instructed students. The data show the lasting impact of early instruction in science and the value of concept maps as a representational tool for cognitive developmental changes.

American Educational Research Journal, Vol. 28, No. 1, 117-153 (1991)
DOI: 10.3102/00028312028001117


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