"The amount of substance"is a highly abstract concept that students encounter upon entering high school.In teaching practice,by u-sing real-life situations as a medium to create authentic and valuable problem scenarios,the unique value of"the amount of substance"in de-veloping students'model cognition and other core disciplinary competencies is explored.Enriching student classroom experiences through activi-ties allows students to gradually develop core chemical competencies while solving practical problems and constructing models independently.
关键词
物质的量/真实情境/模型认知/教学设计
Key words
Amount of Substance/Real-life Context/Model Cognition/Instructional Design
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