Implementation of Reasoning Chain Construction Tasks to Support Student Explanations in General Chemistry

Implementation of Reasoning Chain Construction Tasks to Support Student Explanations in General Chemistry
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实施推理链构建任务以支持普通化学学生的解释

DOI:
10.1021/acs.jchemed.1c00729
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发表时间:
2022
影响因子:
3
通讯作者:
Lindsey, Beth A.
Lindsey, Beth A.
中科院分区:
化学2区
文献类型:
--
作者:
Nagel, Megan L.;Lindsey, Beth A.

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对学生理解的评估,以及更广泛地对学生推理技能的评估,取决于学生引出和解释学生生成的解释的能力。然而,在实践中,学生对传统提示的解释并不总是像化学教育中的教师和研究人员所希望的那样揭示学生的推理。在这篇文章中,我们描述了一种新的方法,推理链建设任务,应用在一般化学课程在一个大型研究机构使用一个著名的化学键的问题的应用。在推理链构建任务中,学生通过从推理元素列表(所有这些都是真的)中绘制来回答化学问题,以便组装支持结论的推理链。我们的研究结果表明,使用这种类型的任务可以引导学生产生更丰富的解释,而不会影响学生结论的整体分布。这些解释为教师和研究人员提供了深入了解学生认为哪些信息对回答同一问题的传统自由回答方式完全缺乏的提示有帮助和相关。我们解释我们的研究结果,通过推理的双过程理论的理论框架。
The assessment of student understanding, and of student reasoning skills more broadly, hinges upon the ability to elicit and interpret student-generated explanations. In practice, however, the explanations that students provide in response to traditional prompts do not always reveal as much about student reasoning as teachers and researchers in chemistry education might prefer. In this article, we describe the application of a novel methodology, thereasoning chain construction task, applied in a general chemistry course at a large research institution using a well-known question on chemical bonding. In a reasoning chain construction task, students respond to a chemistry question by drawing from a list of reasoning elements (all of which are true) in order to assemble a chain of reasoning in support of a conclusion. Our findings indicate that use of this type of task can lead students to generate richer explanations while not impacting the overall distribution of student conclusions. These explanations provide teachers and researchers with insights into what information students deem helpful and relevant for responding to a prompt that is wholly lacking from traditional free-response implementations of the same question. We interpret our results through the theoretical framework of dual-process theories of reasoning.
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