氧化还原认知模型在氯及其化合物复习课中的应用

Application of Redox Cognitive Model in Review Lesson of Chlorine and Its Compounds

化学课程对发展学生核心素养的实践,提出氧化还原认知模型,抓住高中化学元素部分知识特点,详细阐述了氧化还原认知模型在氯气及其化合物复习中的应用;以学生为主体,教师为主导,用问题链引发学生思维链,应用氧化还原认知模型找出含氯物质之间的联系,构建以化合价为横坐标,物质种类为纵坐标的二维图表模型,再应用图表模型,巩固氯元素不同种价态间的转化。

The practice of chemistry course is essential for developing students core literacy.A cognitive model of redox process was proposed,which grasped the characteristics of chemical element knowledge in senior school,and expounded the application of redox cognitive model in the review of chlorine and its compounds in detail.Guided by the principle of students as the cores and teachers as the leaders,using question chain to initiate students thinking chain,a two-dimensional graphic model with valence as abscissa and species as ordinate was built by using redox cognitive model to find out the relationship between chlorine-containing substances,then the transformation of different valence states of chlorine element was consolidated by using the chart model.