基于大单元学习的高三化学反应原理专题复习——催化剂和反应调控

Special Review of Chemical Reaction Principle Based on Large Unit Learning:Catalyst and Reaction Regulation

根据学情诊断确定了以“催化剂和反应调控”为主题的高三大单元复习;结合课标与高考要求勾勒出“催化剂”的认知发展进阶图式,以此为教学目标组织了3个微专题:“探寻催化剂,重现反应历程”“走进微观世界——化学反应机理”“化学反应选择性与催化剂活性”。每个微专题都精选试题案例,设计问题链外显思维轨迹,评价学习变化结果,以引导形成正确的方法策略和认知模型,进而能够系统全面和微观本质地认识“催化剂”的相关内容。

Based on the diagnosis of learning situation,a large unit review with the theme of"catalyst and reaction regulation"was designed;in combination with the curriculum standard and the requirements of the college entrance examination,the advanced schema of cognitive development of"catalyst"was outlined,and three micro topics were organized with this as the teaching goal:"exploring catalyst and reproducing reaction process","entering the micro world:chemical reaction mechanism",and"chemical reaction selectivity and catalytic agent activity"Each micro topic selected test question cases,designed an explicit thinking path of the problem chain,evaluated the results of learning changes,so as to guide the formation of correct methods,strategies and cognitive models,and complete the systematic,comprehensive and micro essential understanding of the relevant content of the"catalyst".