Research On Students' Learning Progressions For Redox Reaction

Learning progressions is a research upsurge of international science education reform in the 21st century. It is concerned with the process of students'thinking changing over time. It contributes to revealing the students'basic learning situation, helping students to form good knowledge structure. Meanwhile, it helps teachers to make more accurate assessment of the teaching effect. The redox reaction is the important content of the high school chemistry course, this paper aims at determining redox reaction learning progressions in high school stage, and hopes to provide a reference for middle school chemistry teaching.This topic mainly revolves around the following aspects:firstly, it is needed to combe the related literature at home and abroad in order to understand the "Learning progressions" of the relevant research and lay a foundation for the research. Secondly, it is to make the construction of oxidation reduction reaction knowledge system and put forward "redox reaction" preliminary study advanced by analyzing of high school curriculum standards and chemical materials. Thirdly, this is a way to analyze the understanding of the front-line teachers about "redox reaction" system under the background of the new curriculum and analyze the rationality of level division through interview survey. Last, to make the instructional design for redox reaction is based on learning progressions divide of the redox reaction.This study combines learning progressions and middle school chemistry course, constructs the redox reaction knowledge system, and advances the "redox reaction" learning progressions to make the corresponding teaching design, in order to provide some reference value for the front-line teachers.