Creating Representation in Support of Chemical Reasoning to Connect Macroscopic and Submicroscopic Domains of Knowledge

Creating Representation in Support of Chemical Reasoning to Connect Macroscopic and Submicroscopic Domains of Knowledge
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创建支持化学推理的表示以连接宏观和亚微观知识领域

DOI:
10.1021/acs.jchemed.1c00292
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发表时间:
2022
影响因子:
3
通讯作者:
Walter, Joseph
Walter, Joseph
中科院分区:
化学2区
文献类型:
--
作者:
Bruce, Mitchell R.;Bruce, Alice E.;Walter, Joseph

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化学推理有多种形式。本文的重点是一个推理过程,便于使用实验证据,使宏观和亚微观域之间的连接,我们将称为创建表示。这是一种特殊类型的推理,在化学中发挥了关键作用,使许多科学进步和发现成为可能。然而,在我们的入门教室或实验室中,创造表征的技能往往没有得到明确的解决。本文概述了创建和使用表示,建立在其他建构主义方法的过程中,但在一个新的方式来提供一致性的新手学习者的专家科学家。我们说明了这种方法是如何制定的核心实验室学习周期(化学观察表示实验),在那里提供支持,以帮助学生产生的想法表示。我们还说明了实验室报告如何提供反思的机会,这可以产生新的想法,导致修改的表示。还包括比较ofCORE与阿特金和Karplus学习周期,以显示这些不同的学习机会如何让学生参与互补的认知过程,以促进化学推理技能。
Chemical reasoning takes many forms. The focus in this paper is on a reasoning process that facilitates using experimental evidence to make connections between macroscopic and submicroscopic domains, which we will refer to ascreating representation. It is a particular type of reasoning that has played a critical role in chemistry, enabling numerous scientific advancements and discoveries. Yet, the skill of creating representation is often not explicitly addressed in our introductory classrooms or laboratories. This paper outlines a process for creating and using representation that builds on other constructivist approaches but is framed in a new way to afford consistency across a continuum of novice learners to expert scientists. We illustrate how this approach is enacted in theCORElaboratory learning cycle (ChemicalObservationsRepresentationExperimentation), where supports are provided to help students generate ideas about representation. We also illustrate how lab reports provide opportunities for reflection, which can generate new ideas leading to revision of a representation. A comparison ofCOREwith the Atkin and Karplus learning cycle is also included to show how these different learning opportunities engage students in complementary cognitive processes to promote chemical reasoning skills.
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