基于证据-模型链支架的中学化学概念转变教学——化学平衡的动态性  

Teaching of High School Chemistry Concept Transformation Based on MEL Scaffold: Dynamics of Chemical Equilibrium

作　　者：杨笑 占小红[1] YANG Xiao;ZHAN Xiao-Hong(College of Teacher Education,East China Normal University,Shanghai 200062,China)

机构地区：[1]华东师范大学教师教育学院,上海200062

出　　处：《化学教育（中英文）》2022年第19期71-76,共6页Chinese Journal of Chemical Education

摘　　要：基于可信度在概念转变中的重要性,介绍了注重证据与概念匹配关系的证据-模型链(MEL)教学支架,说明了它在支持概念可信度重新评估、促进概念转变教学有效完成中的作用。通过分析MEL支架的构成要素及呈现形式,开发了适用于化学概念转变教学的课堂教学模式,并以容易产生相异构想的典型主题“化学平衡的动态性”为教学设计案例,对基于MEL的概念转变教学模式付诸实践并予以说明。Based on the importance of plausibility in concept transformation, this paper introduces the MEL(model evidence link) teaching scaffolding that pays attention to the matching relationship between evidence and concept, and explains its role in supporting the reassessment of concept plausibility and promoting the effective completion of concept transformation teaching. By analyzing the constituent elements and presentation forms of MEL scaffolding, a classroom teaching mode suitable for chemical concept transformation teaching is developed. Taking the typical theme “the dynamics of chemical equilibrium” which is easy to produce alternative concept as a teaching design case, the concept transformation teaching mode based on MEL is put into practice and explained.

关 键 词：证据-模型链 化学概念转变 可信度 化学平衡动态性 

分 类 号：G633.8[文化科学—教育学]