A Chemical Redox Reaction Concept Teaching

The chemical concept manifests the reflects of the Chemical situations and nature. Teachers only let students understand these Chemical Concepts clearly, We can make students further to recognize things and their laws. As we know, the Chemical Concept is too abstract for students to understand. Because of combination between micro and macro, especially when the new high-school students who come from mid-school are less of relative knowledge about atomic structure and Chemical Bond. It is very difficult to understand the Innate character of Redoxs Reaction-electron fransfer. As far as this point concerned, There will appear some problems without knowing the linkage of concepts and some problems involved in concepts about Redox Reaction .This research regards constructivism as a guide, in the survey and study of concepts of Redox Reaction. We find out some common problems when the students deal with them. We make some ways to improve teaching and work out teaching experiment and compare teaching results by studying and analyzing the reason that leads to these problems.The results show that reviewing related knowledge from middle school will help students understand new concepts. in addition, If we will put abstract concepts into visualization. It can also make students understand some knowledge more clearly. Especially when there are many linkages among several Concepts, it is better to show contact with"visullization"than only to explain and implant. At last, while explaining the process of concepts we should finish them step by step from implicity to abstract by working out concepts of migration. These theory and practice will make teaching effectiveness better than before.