聚焦学科核心素养提升的初中化学教学探索——以“酸的化学性质”为例

Exploration of Chemistry Teaching in Junior High School Focusing on the Core Literacy of the Subject:Taking“Chemical Properties of Acids”as an Example

以酸的化学性质为载体,对知识进行上位和深层整合,将核心知识、学习活动与评价紧密结合,借助完整的科学探究,应用"宏观、微观、符号表征相结合"的学科思维方式,增进"组成构成决定性质、性质决定用途"学科思想的理解,培养高级思维和创新能力。自主建构"元素组成和微粒种类统领角度下的基于类别认识物质化学性质"的整体思维模型,实现物质化学性质认识的角度进阶。聚焦涵盖学科知识,积淀学科核心素养,落实学科育人的初中化学教学,实现初高中衔接。

Taking the acid chemical properties as the carrier,the knowledge is carried on the superior position and the deep integration,the core knowledge,the learning activity and the evaluation are closely combined,with the help of the complete scientific inquiry,this paper applies the thinking mode of"the combination of macro and micro symbolic representation"to improve the understanding of the thought of"composition determines nature,nature determines use",and to cultivate advanced thinking and innovative ability.An overall thinking model of"recognizing material based on category under the dominant angle of element composition and particle type"is independently constructed to realize the advanced angle of material chemical property recognition.The focus covers the subject knowledge,accumulates the subject core literacy,carries out the subject education junior middle school chemistry teaching,realizes the connection between junior high school and senior high school.