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ERIC Number: EJ1144397
Record Type: Journal
Publication Date: 2017-Jun
Pages: 27
Abstractor: As Provided
ISSN: EISSN-1305-8223
Light Source Matters--Students' Explanations about the Behavior of Light When Different Light Sources Are Used in Task Assignments of Optics
Kesonen, Mikko Henri Petteri; Asikainen, Mervi Anita; Hirvonen, Pekka Emil
EURASIA Journal of Mathematics, Science & Technology Education, v13 n6 p2777-2803 Jun 2017
In the present article, the context-dependency of student reasoning is studied in a context of optics. We investigated introductory students' explanations about the behavior of light when different light sources, namely a small light bulb and a laser, were used in otherwise identical task assignments. The data was gathered with the aid of pretest and post-test questions and semi-structured interviews. According to the results, the different light sources triggered different sets of students' ideas about light and its behavior. The students' ideas corresponded to the perceptible features of the light sources, and textbook presentations used at the earlier levels of education. The use of the ideas hindered students' abilities to apply the scientific models of light in a coherent manner. Overall the present study suggests that students' difficulties in understanding the behavior of light are partly caused by their ideas about light sources commonly labeled in the task assignments of optics.
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Publication Type: Journal Articles; Reports - Research; Tests/Questionnaires
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Finland
Grant or Contract Numbers: N/A