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ERIC Number: EJ903691
Record Type: Journal
Publication Date: 2010-Nov
Pages: 32
Abstractor: As Provided
Reference Count: 47
ISSN: ISSN-0950-0693
External Visual Representations in Science Learning: The Case of Relations among System Components
Eilam, Billie; Poyas, Yael
International Journal of Science Education, v32 n17 p2335-2366 Nov 2010
How do external visual representations (e.g., graph, diagram) promote or constrain students' ability to identify system components and their interrelations, to reinforce a systemic view through the application of the STS approach? University students (N = 150) received information cards describing cellphones' communication system and its subsystem components. One group (n = 82) received a display of cards presenting this information in rich and diverse visual representations and a few text cards. Another group (n = 68) received a single representation display, of text only. Using these card sets, students were asked to identify the cellular systems' components and relations, and to construct new interrelations. Findings showed that, mostly, multimedia enabled better identification and construction of relations of higher component diversity, accuracy, description, and novelty, using a larger number of information cards than did the textual display. Generally, findings suggested that components' saliency and distinctiveness in the visual display afforded a better systemic view. However, curriculum designers and teachers should be aware of cases in which rich multimedia constrained performance. (Contains 4 tables and 3 figures.)
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Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A