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化学中学习者对物质进行的宏观表征、微观表征和符号表征以及建立三者间的联系是化学学科不同于其他学科的最典型的思维方式,离开了这个基本点,就不是化学。然而,调查发现学生学习化学的困难恰好是缺乏将它们进行有机联系的能力,学生很难完成从宏观到微观、从微观到符号和从宏观到符号的抽象。本文通过对学习者三重表征形成过程的研究,提出了相应的教学策略,以此来促进学生形成良好的化学思维方式及认知结构,并帮助学生理解化学学科内在的逻辑结构。一、物质三重表征的涵义及形成表征是认知心理学中的一个术语,它是指客观事物在人的心理上的感知反映,它可以是图像的、声像的、
Chemistry Macroscopically, macroscopically characterize and symbolize character and establish the connection between the three is the most typical way of thinking that chemistry is different from other disciplines. Without this basic point, it is not chemistry. However, the survey found that students’ difficulties in learning chemistry happen to be the lack of the ability to organically link them. Students find it hard to accomplish the abstraction from macroscopic to microscopic, from microscopic to symbolic and from macroscopic to symbolic. Through the study of the forming process of learners’ triple representation, this paper puts forward corresponding teaching strategies to promote students to form a good way of thinking and cognitive chemistry, and help students understand the logical structure inherent in chemistry. First, the meaning of the triple representation of the material and the formation of representation is a term in cognitive psychology, it refers to the perception of objective things in human psychology, it can be image, audio and video,