Triple Characterization Teaching Design

REDOX reaction is one of the important and difficulty of high school chemistryteaching, students in the learning and understanding the REDOX reaction, often still staysin the early to middle school of oxidation and reduction reaction, not understanding and theunderstanding from the Angle of electron transfer REDOX reaction.And with triplecharacterization ways of thinking can effective learning chemistry, because of the changeof material on the macroscopic embodies the nature, structure and composition of materialsuch as microscopic theory well explains the nature of the material, chemical symbol fromthe microcosmic science, concise expression of the material properties and change, symbolis a bridge connection macroscopic and microscopic.Were reviewed in this paper the REDOX reaction, on the basis of relevant research,based on the triple characterization as a theory, analyzes the teaching content, students’knowledge base and the teaching difficulty, and then carried out based on the triplecharacterization of the REDOX reaction of teaching design;To examine the teachingdesign of the teaching effect, we carried out a research into practice.The practice resultsshow that the design of teaching to help students effectively analysis and solving chemicalproblems.In the process of the practice of the teaching plan, the author used in the experimentalclasses based on the triple characterization for guidance of teaching methods, in that incomparative classes using conventional teaching methods, after compared results ofexperimental classes and that in comparative classes.The results show that in theexperimental teaching for characterizing the triple than that in comparative classes byroutine teaching achievements significantly, that is to say, when students in REDOXreaction can be smoothly conversion between macro-micro-symbol, it improves theability of problem analysis and problem solving, truly will learn.