基于“预测–验证–分析–结论”策略的教学设计研究——以碱金属元素的结构与性质为例
Research on Teaching Design Based on the Strategy of “Prediction-Verification-Analysis-Conclusion”—Taking the Structure and Properties of Alkali Metal Elements as an Example

原子结构与元素性质之间的关系是认识元素周期表和元素周期律非常重要的内容。本文基于“预测–验证–分析–结论”的研究策略，以碱金属元素为例，从“宏观现象–微观解释–符号表征”来探究碱金属元素的结构和性质之间的关系，构建认知模型，形成认识元素和物质性质的新视角，从而揭示元素性质的联系，继而培养高中生“宏观辨识与微观探析”、“证据推理与模型认知”等学科核心素养。
The relationship between atomic structure and elemental properties is a very important element in the understanding of the periodic table and the periodic law of the elements. In this paper, based on the idea of “prediction-verification-analysis-conclusion”, we take the group of alkali metal elements as an example to explore the relationship between the structure and properties of alkali metal elements from “macroscopic phenomena-microscopic explanation-symbolic representation”, construct a cognitive model, and form a new perspective on the understanding of elements and properties. This study will reveal the connection between the properties of elements and matter, and develop the core qualities of “macroscopic identification and microscopic investigation” and “evidential reasoning and model cognition” in high school students.