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化学是在原子、分子水平上研究物质的组成、结构、性质及其应用的一门基础自然学科。“元素观”是从元素视角来认识物质及其转化所形成的相关认识的概括性观念。物质由元素组成,从元素视角看物质性质和转化是化学与其他学科最大的不同之处,它有利于学生对纷繁复杂的物质世界形成有序的认识,有利于学生掌握化学学科的思想方法。王磊教授提出“物质、结构、反应”是反映化学学科内容本体的三大核心概念。胡久华教授提出“物质的量、物质分类、电解质与电离、氧化还原反应、化学键、化学平衡、盐类水解、原电池”等是高中化学核心概念。
Chemistry is a basic natural discipline that studies the composition, structure, properties and application of matter at the atomic and molecular levels. “Elements of view ” is a general concept of understanding the formation of the material and its transformation from the elemental perspective. Material is composed of elements. From the elemental perspective, the nature of matter and its transformation are the biggest differences between chemistry and other disciplines. It helps students to form an orderly understanding of the complex and material world and helps students master the thinking and methods of chemistry. Professor Wang Lei proposed that “matter, structure, reaction” is the three core concepts that reflect the ontology of chemistry subject. Professor Hu Jiuhua proposed that “the amount of substances, material classification, electrolyte and ionization, redox reactions, chemical bonds, chemical equilibrium, salt hydrolysis, primary batteries,” and so on are the core concepts of high school chemistry.