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初高中学生“物质的量”概念学习特征的比较研究

【作者】 王玮丽

【导师】 王祖浩;

【作者基本信息】 华东师范大学, 教育硕士(专业学位), 2017, 硕士

【摘要】 “物质的量”概念系统是由多个化学概念构成的关系密切且完整的概念体系。包含了物质的量、摩尔质量、气体摩尔体积、物质的量浓度、阿伏加德罗常数等化学概念。“物质的量”概念系统贯穿中学化学教学,由于其概念的抽象性、概念间关系的复杂性等原因,一直以来都是中学化学教学的难点和学生学习的分化点。学生能结合宏观、微观的思想,构建完整的“物质的量”概念系统的认知结构,解决中学化学“量”的问题,是整个中学化学的计量学习的基础和关键。本研究主要包含两部分研究内容,它们是:(1)初中生“物质的量”概念学习特征研究(2)初高中学生“物质的量”概念学习特征的比较研究本研究用调查法、实验法、访谈法等进行验证和探索,以国内外参考文献作理论支撑。通过大量测试和问卷的结果分析初中学生“物质的量”概念学习的水平,关注初中生在“物质的量”的学习过程中所产生的前概念、误概念、分化点以及认知水平的情况,多角度多层次剖析初高中学生学习“物质的量”在认知水平和学习特征等方面的差异。证明了初中学习“物质的量”概念的有效性和可行性,并为初高中化学概念教学衔接提供切实有效的建议。

【Abstract】 The molar system is composed of several chemical concepts such as molar mass, mole gas volume, molarity, Avogardo constant and so on. The relationship between concepts in the molar system is close and complete.The molar system is the fundamental in the middle school chemistry education. The chemical concepts in it are complicated, numerous and abstract, so that both teachers and students feel it difficult to learn. The molar system plays an important role in helping students construct knowledge structure and understand chemical problems through macroscopic and microscopic view.In this paper, there are two parts. The first part is about the student in Grade 9 how to learn mole. The other part is about the comparative research of concept understanding in molar system among middle school students.Based on the theory of related literatures and constructionism, the research is carried out by means of investigations and experiments. Through a lot of exams and questionnaire, junior high school students’learning levels on the molar system have been analysed. It paid attention to the former concept, the concept of error, the differentiation point and the cognitive level of junior high school students in the learning process of Molar System. There are angle and multi-level analysis of the middle school students to learn Molar System in the cognitive level and learning characteristics and other aspects of the difference. It also demonstrated the effectiveness and feasibility of the learning concept of Molar System among middle school students, and provided effective suggestions for chemistry concept teaching at the beginning of high school.

【关键词】 物质的量概念学习比较研究
【Key words】 moleconcept learningcomparative research

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  • 【网络出版投稿人】 华东师范大学
  • 【分类号】G633.8
  • 【下载频次】145
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