Mapping undergraduate chemistry students' epistemic ideas about models and modeling

Mapping undergraduate chemistry students' epistemic ideas about models and modeling
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绘制本科化学学生关于模型和建模的认知想法

DOI:
10.1002/tea.21614
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发表时间:
2019
影响因子:
4.6
通讯作者:
Becker, Nicole M.
Becker, Nicole M.
中科院分区:
教育学1区
文献类型:
--
作者:
Lazenby, Katherine;Stricker, Avery;Brandriet, Alexandra;Rupp, Charlie A.;Mauger‐Sonnek, Kathryn;Becker, Nicole M.

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建立和运用科学模型是理科生的一项重要科学实践活动。本科化学课程通常以建立的学科模型为中心,评估通常为学生提供使用这些模型来预测和解释化学现象的机会。然而,传统课程通常很少提供机会让学生考虑模型的认识论性质和建模过程。为了了解化学入门课程的学生如何理解模型的可变性、模型的多样性、模型的评估和建模的过程,我们使用构造映射方法来表征学生对模型和建模的认知知识的复杂性。我们提出了一组四个相关的构建图,这些图是我们根据其他学者的工作开发的,并在本科化学入门设置中得到了经验验证。我们使用结构图来确定学生对开放式调查工具的反应主题,化学调查中的模型,并讨论对教学的影响。
Developing and using scientific models is an important scientific practice for science students. Undergraduate chemistry curricula are often centered on established disciplinary models, and assessments typically provide students with opportunities to use these models to predict and explain chemical phenomena. However, traditional curricula generally provide few opportunities for students to consider the epistemic nature of models and the process of modeling. To gain a sense of how introductory chemistry students understand model changeability, model multiplicity, the evaluation of models, and the process of modeling, we use a construct‐mapping approach to characterize the sophistication of students' epistemic knowledge of models and modeling. We present a set of four related construct maps that we developed based on the work of other scholars and empirically validated in an undergraduate introductory chemistry setting. We use the construct maps to identify themes in students' responses to an open‐ended survey instrument, the models in chemistry survey, and discuss the implications for teaching.
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