Secondary Students' Stable and Unstable Optics Conceptions Using Contextualized Questions

Hye Eun Chu, David F. Treagust

Research output: Contribution to journalArticleResearchpeer-review

Abstract

This study focuses on elucidating and explaining reasons for the stability of and interrelationships between students' conceptions about Light Propagation and Visibility of Objects using contextualized questions across 3 years of secondary schooling from Years 7 to 9. In a large-scale quantitative study involving 1,233 Korean students and 1,149 Singaporean students, data were analyzed from responses to the Light Propagation Diagnostic Instrument consisting of four pairs of items, each of which evaluated the same concept in two different problem situations. Findings show that only about 10-45 % of students could apply their conceptions of basic optics in contextualized problem situations giving rise to both stable and unstable alternative conceptions. Students' understanding of Light Propagation concepts compared with Visibility of Objects concepts was more stable in different problem situations. The concepts of Light Propagation and Visibility of Objects were only moderately correlated. School grade was not a strong predictive variable, but students' school achievement correlated strongly with their conceptual understanding in optics. The teaching and learning approach and education systems in the two countries may have had some influence on students' conceptual understanding.

LanguageEnglish
Pages238-251
Number of pages14
JournalJournal of Science Education and Technology
Volume23
Issue number2
DOIs
Publication statusPublished - Apr 2014
Externally publishedYes

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Optics
Light propagation
Students
Visibility
student
education system
diagnostic
Teaching
school grade
Education
school
learning

Cite this

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Secondary Students' Stable and Unstable Optics Conceptions Using Contextualized Questions. / Chu, Hye Eun; Treagust, David F.

In: Journal of Science Education and Technology, Vol. 23, No. 2, 04.2014, p. 238-251.

Research output: Contribution to journalArticleResearchpeer-review

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