Scaffolding Students' Online Critiquing of Expert- and Peer-generated Molecular Models of Chemical Reactions

Hsin Yi Chang*, Hsiang Chi Chang

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

15 引文 斯高帕斯(Scopus)

摘要

In this study, we developed online critiquing activities using an open-source computer learning environment. We investigated how well the activities scaffolded students to critique molecular models of chemical reactions made by scientists, peers, and a fictitious peer, and whether the activities enhanced the students' understanding of science models and chemical reactions. The activities were implemented in an eighth-grade class with 28 students in a public junior high school in southern Taiwan. The study employed mixed research methods. Data collected included pre- and post-instructional assessments, post-instructional interviews, and students' electronic written responses and oral discussions during the critiquing activities. The results indicated that these activities guided the students to produce overall quality critiques. Also, the students developed a more sophisticated understanding of chemical reactions and scientific models as a result of the intervention. Design considerations for effective model critiquing activities are discussed based on observational results, including the use of peer-generated artefacts for critiquing to promote motivation and collaboration, coupled with critiques of scientific models to enhance students' epistemological understanding of model purpose and communication.

原文英語
頁(從 - 到)2028-2056
頁數29
期刊International Journal of Science Education
35
發行號12
DOIs
出版狀態已發佈 - 2013 8月
對外發佈

ASJC Scopus subject areas

  • 教育

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