Analyzing Students’ Construction of Graphical Models: How Does Reaction Rate Change Over Time?
| Autor: | Jon-Marc G. Rodriguez, Nicole M. Becker, A. Rayford Harrison |
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| Rok vydání: | 2020 |
| Předmět: |
Change over time
010405 organic chemistry Logical reasoning 05 social sciences 050301 education Student engagement Context (language use) General Chemistry 01 natural sciences 0104 chemical sciences Education Focus (linguistics) Variety (cybernetics) ComputingMilieux_COMPUTERSANDEDUCATION Mathematics education Graphical model Chemistry (relationship) 0503 education Mathematics |
| Zdroj: | Journal of Chemical Education. 97:3948-3956 |
| ISSN: | 1938-1328 0021-9584 |
| Popis: | With recent curricular movements aimed at engaging students in science practices, more work is needed regarding evidence-based approaches for supporting students in developing competency in contexts such as chemistry. In this work, we focus on student engagement in constructing models related to graphical representations of reaction rate. Using semistructured interviews, 15 general chemistry students were provided a prompt that asked them to draw a graph to indicate how rate would change over time. Analysis involved characterizing the models students constructed, with students combining chemistry principles with mathematical reasoning to justify the specific shape of the graph. Results indicate similar chemistry and mathematical ideas discussed among the students but a variety of distinct models to describe reaction rate. The similar chemistry and mathematics ideas used by the students indicate they have productive ideas for reasoning about the context, but they need more support regarding how to combine these ideas, reflecting students’ difficulty in using mathematics to model chemistry phenomena. |
| Databáze: | OpenAIRE |
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