The Study On Characteristic Strategy Of Chemistry Problem-solving

It is of great importance to the process and quality of chemistry problem-solving whether strategies with chemistry course characteristics can be applied correctly in chemistry problem-solving. Studying the characteristic strategies applied by students in their solving chemistry problems is of great benefit to improve students' learning capability, enrich theories system of chemistry problem-solving study and promote students' sense and capability of lifelong learning.This study is based on theories about problem-solving concerned in philosophic psychology, cognition psychology and chemistry pedagogies. With the carrier of chemistry problems and by methods of experiment survey, think aloud and action observation etc., the study on the chemistry problem-solving characteristic strategy of the senior secondary school students was carried out and the study results indicated that:1. There is a kind of problem-solving strategy with chemistry course characteristics in the process of students' solving chemistry problems. Those are: the Analysis-recursion strategy with the clue of substance structure-nature-application, the Intermediary- transition strategy with the characteristic of chemistry symbols , the Pattern-distinguish strategy with the mould of chemistry experiments.2. There are some differences in strategy selection, application and efficiency among different experimented students while solving a same chemistry problem. The experimented students showed a kind of comprehensiveness in selection of the chemistry problem-solving characteristic strategy. That is to say, experimented students would apply more than one characteristic strategy at one time.3. As for one same experimented student, the opportunity of selecting and applying the chemistry problem-solving characteristic strategy would be different when he solves chemistry problems of different difficulty. With the increase of experimented students' proficiency for chemistry problems, changes on selection of characteristic strategy would also take place.characteristic strategy would also take place.4. The selection and application of strategies on chemistry problem-solving would have a great influence on quality of chemistry problem-solving. Whether the chemistry problem-solving characteristic strategies can be applied is an important factor that influences the quality of chemistry problem-solving. In addition, the level of applying the chemistry problem-solving characteristic strategies is the main reason that causes the differences in quality of chemistry problem-solving.The characteristic strategy applied by the students in their solving Chemistry problems is a process of being found and developed continuously. The ultimate goal of studying characteristic strategy of chemistry problem-solving is to improve students' ability of chemistry problem-solving, to cultivate students' confidence and to encourage them to develop much better. How to popularize these characteristic strategies of chemistry problem-solving in secondary schools so as to improve students' problem-solving ability? What's the intrinsic psychological mechanism of students' differences in applying characteristic strategy of chemistry problem-solving? ...All these concerned problems are worthy of our more and thorough study.