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http://dx.doi.org/10.15267/keses.2015.34.1.072

Analysis on the Change of Niche Overlap of Elementary School Students' Photosynthesis Concepts through Instruction  

Lim, Soo-Min (Kyungpook National University)
Kim, Young-Lan (Kyungpook National University)
Shin, Ae-Kyung (Jeju National University)
Kim, Youngshin (Kyungpook National University)
Publication Information
Journal of Korean Elementary Science Education / v.34, no.1, 2015 , pp. 72-85 More about this Journal
Abstract
Conception in learner's cognitive structure has a niche as species in ecosystems. The purpose of this study is to analyze the change of niche overlap of photosynthesis concept through instruction. The photosynthesis concepts were selected from literature review. Selected concepts were in 4 areas: Location of photosynthesis, reactants, products, and environmental factors. The subjects consisted 304 elementary students. The respondent marked the relevance between the presented concepts and each area on a scale of 1~30 points. The analysis of niche overlap in concepts was performed by changing in niche overlap graph, niche space size, and overlap index before and after instruction. The results are as follows. First, on the whole understanding level and relevance of the scientific concepts was increased through instruction as a result of learning. Second, elementary school students cognitive concepts in the form of chunking concepts through classification process. Based on the results, this study has the following suggestion. Students' conceptual ecologies and niche analyzed by this study will be used as material for development of instruction strategy.
Keywords
photosynthesis concepts; niche; niche overlap;
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Times Cited By KSCI : 3  (Citation Analysis)
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