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Reasoning, Granularity, and Comparisons in Students' Arguments on Two Organic Chemistry Items
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- Author(s): Deng, Jacky M. (ORCID
Deng, Jacky M. (ORCID 0000-0002-2633-6624 ); Flynn, Alison B. (ORCIDFlynn, Alison B. (ORCID 0000-0002-9240-1287 )- Language:
English- Source:
Chemistry Education Research and Practice. Jul 2021 22(3):749-771.- Publication Date:
2021- Document Type:
Journal Articles
Reports - Research - Language:
- Additional Information
- Availability: Royal Society of Chemistry. Thomas Graham House, Science Park, Milton Road, Cambridge, CB4 0WF, UK. Tel: +44-1223 420066; Fax: +44-1223 423623; e-mail: [email protected]; Web site: http://www.rsc.org/cerp
- Peer Reviewed: Y
- Source: 23
- Education Level: Higher Education
Postsecondary Education - Subject Terms:
- Subject Terms:
- Accession Number: 10.1039/d0rp00320d
- ISSN: 1756-1108
- Abstract: In a world facing complex global challenges, citizens around the world need to be able to engage in scientific reasoning and argumentation supported by evidence. Chemistry educators can support students in developing these skills by providing opportunities to justify how and why phenomena occur, including on assessments. However, little is known about how students' arguments vary in different content areas and how their arguments might change between tasks. In this work, we investigated the reasoning, granularity, and comparisons demonstrated in students' arguments in organic chemistry exam questions. The first question asked them to decide and justify which of three bases could drive an acid--base equilibrium to products (Q1, n = 170). The majority of arguments exhibited relational reasoning, relied on phenomenological concepts, and explicitly compared between possible claims. We then compared the arguments from Q1 with arguments from a second question on the same final exam: deciding and justifying which of two reaction mechanisms was more plausible (Q2, n = 159). The arguments in the two questions differed in terms of their reasoning, granularity, and comparisons. We discuss how course expectations related to the two questions may have contributed to these differences, as well as how educators might use these findings to further support students' argumentation skill development in their courses.
- Abstract: As Provided
- Publication Date: 2021
- Accession Number: EJ1300672
- Availability:
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