Linking the macroscopic and sub-microscopic levels : diagrams
Linking the macroscopic and sub-microscopic levels : diagrams
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连接宏观和亚微观层面：图表
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
G. Chittleborough
中科院分区：
文献类型：
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作者：
B. Davidowitz;G. Chittleborough
对化学现象的解释几乎总是集中在亚微观层面上，这是一个无法观察到的层面，但通常在符号层面上提供图表。这些图表代表了物质的宏观和亚微观层次。宏观水平和次微观水平的图表之间的联系并不总是明显的学生，表明化学图表需要仔细和明确地使用。让学生绘制和注释化学图表，在亚微观层面上代表化学现象，可以提供一些深入了解他们的化学在宏观层面上的理解。当表示不被理解、宏观和亚微观层面之间没有建立联系或图表不熟悉时，可能会出现对图表的误解。针对这些困难，根据研究和图表教学经验，提出了在化学教学中选择和使用描绘亚微观水平的化学图表的策略。这些策略为学习者建构可接受的亚微观层次的个人心理模型提供了机会。
Explanations of chemical phenomena are nearly always focused at the sub-micro level, a level that cannot be observed, yet are normally provided with diagrams at the symbolic level. These diagrams represent the macro and sub-micro levels of matter. The connections between the macro level and the diagrams of the sub-micro level are not always apparent to students, indicating a need for chemical diagrams to be used carefully and explicitly. Having students draw and annotate chemical diagrams representing chemical phenomena at the sub-micro level can provide some insight into their understanding of chemistry at the macro level. Misinterpretation of diagrams can occur when the representations are not understood, when links are not made between the macro and sub-micro levels, or when the diagram is unfamiliar. Responding to these difficulties, strategies based on research and our experiences of teaching with diagrams are suggested for the choice and use of chemical diagrams depicting the sub-micro level in the teaching and learning of chemistry. These strategies provide opportunities for learners to construct acceptable personal mental models of the sub-micro level.