基于发展初中生化学学科核心素养的“分子”教学设计——分子构成物质的模型建构与应用

Teaching Design of “Molecule” Based on Development of Chemistry Core Literacy for Junior High School Students:Model Construction and Application of Substances

基于化学学科核心素养理念,以宏观的实验数据和现象作为切入点,引出分子的性质与构成,在此基础上,重点介绍由分子如何构成物质的微观模型,再运用该模型解释物质的性质、变化与种类的宏观问题,并在此过程中培养学生化学学科核心素养。

Based on the concept of core literacy of chemistry, this lesson takes the macro experimental data and phenomena as the starting point to introduce the nature and composition of molecules. On this basis, it focuses on how molecules constitute the micro model of substances, and then uses the model to explain the macro problems of the nature, changes and types of substances, and in this process, it cultivates the core literacy of chemistry.