Concept-Oriented Task Design: Making Purposeful Case Comparisons in Organic Chemistry,Journal of Chemical Education

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Concept-Oriented Task Design: Making Purposeful Case Comparisons in Organic Chemistry
Journal of Chemical Education ( IF 2.5 ) Pub Date : 2018-02-14 00:00:00 , DOI: 10.1021/acs.jchemed.7b00672
Nicole Graulich ₁ , Michael Schween ₂

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Acquiring conceptual understanding seems to be one of the main challenges students face when studying organic chemistry. Traditionally, organic chemistry presents an extensive variety of chemical transformations, which often lead students to recall an organic transformation rather than apply conceptual knowledge. Strong surface level focus and rather weak conceptual knowledge is the consequence. Purposefully designed tasks, which help engaging students to “overlook” the structural features, are proposed here as a means to enhance conceptual understanding and the integration of concepts. Following the idea of contrasting cases, broadly used in science education, and mirroring the epistemic practice of organic chemistry, we illustrate how contrasting cases can be embedded in an inquiry process to highlight the influence of electronic substituent effects on reactive intermediates and rates of organic reactions.

中文翻译：

面向概念的任务设计：在有机化学中进行有目的的案例比较

在学习有机化学时，获得概念上的理解似乎是学生面临的主要挑战之一。传统上，有机化学会呈现各种各样的化学转化，这通常会使学生回想起有机转化而不是应用概念知识。结果是强大的表面焦点和相对较弱的概念知识。本文提出了有目的设计的任务，可以帮助学生“忽略”结构特征，以此作为增强概念理解和概念整合的手段。遵循在科学教育中广泛使用的对比案例的想法，并反映了有机化学的认知实践，

更新日期：2018-02-14

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