Concept-Oriented Task Design: Making Purposeful Case Comparisons in Organic Chemistry
Concept-Oriented Task Design: Making Purposeful Case Comparisons in Organic Chemistry
复制标题
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
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Michael Schween
中科院分区：
文献类型：
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作者：
Nicole Graulich;Michael Schween
获得概念理解似乎是学生在学习有机化学时面临的主要挑战之一。传统上，有机化学呈现出广泛的化学转化，这往往导致学生回忆有机转化，而不是应用概念知识。其结果是，表面层面的关注很强，而概念知识相当薄弱。有目的地设计任务，这有助于吸引学生“忽略”的结构特征，在这里提出的一种手段，以加强概念的理解和概念的整合。对比的情况下，广泛用于科学教育的想法，并反映有机化学的认识实践，我们说明了如何对比的情况下，可以嵌入在一个调查过程中，突出电子取代基效应的影响，活性中间体和有机反应的速率。
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.