The Application Research Of The "quadruple Representation" Teaching Mode In "Ion Reaction And Equilibrium In Aqueous Solution"

Part of "Ionic reactions and equilibrium in aqueous solution" is complex and has many graphic analysis,which is not conducive to the mastery of knowledge.The Tetra-Representation teaching model can characterize chemical changes from the perspective of "macroscopy-microcosm-semiot-curve",which helps students understand abstract concepts and micro-knowledge,easily remember various chemical symbols and reduce the difficulty of comprehensive analysis of curve diagrams.This study mainly adopts literature research,case analysis,experimental research,interview and other research methods,and constructs the TetraRepresentation teaching model on the basis of proximal development area theory,cognition and discovery learning theory,dual coding theory and information processing theory.In this study,the students in the second year of high school are taken as research objects,and the chapter "Ionic reactions and equilibrium in aqueous solution" are taken as an example for teaching practice.The practice results show that the Tetra-Representation teaching model reflects the requirements of The Times,and plays a positive role in promoting the formation of the unique representational ability of the four chemical disciplines and the implementation of the core accomplishment of the five-dimensional chemistry discipline.