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ERIC Number: EJ884390
Record Type: Journal
Publication Date: 2009-Apr
Pages: 22
Abstractor: As Provided
Reference Count: 62
ISBN: N/A
ISSN: ISSN-1306-3065
Understanding Mental Models of Dilution in Thai Students
Jansoon, Ninna; Coll, Richard K.; Somsook, Ekasith
International Journal of Environmental and Science Education, v4 n2 p147-168 Apr 2009
The purpose of this study was to investigate Thai students' understanding of dilution and related concepts. The literature suggests that a complete understanding of chemistry concepts such as dilution entails understanding of and the ability to integrate mental models across three levels of representation: the macroscopic, sub-microscopic and symbolic. In this work students' understanding was probed using the interview about events (IAE) approach employing open-ended questions, and also by analysis of student descriptions, and drawings. The research findings suggest that all students were able to answer open-ended questions related to dilution and related concepts. Less able students presented representations at the symbolic level and subsequently described events at the submicroscopic and macroscopic levels. However, these latter representations typically were unrelated to the representations presented at the symbolic level. In contrast, more able students were able to present consistent representations of dilution at each level of representation. (Contains 9 figures.)
International Consortium for the Advancement of Academic Publication. Abant Izzet Baysal University, Faculty of Education, 14280 Golkoy-Bolu, Turkey. e-mail: editorijese@gmail.com; Web site: http://www.ijese.com
Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Thailand