| With the increasing application of chemistry in our life,chemistry teaching in middle school has become very important.The proposal of chemical core literacy reflects the essential characteristics of chemistry,integrates the basic chemical knowledge,chemical learning ability and chemical thinking mode,guides students to master the necessary chemical foundation for future development,and how to better reflect the core literacy in chemical classroom teaching has attracted more and more scholars' attention.This paper mainly studies how to embody the core quality of chemistry in the redox teaching.Through the improvement of teaching strategies,students can explain the causes and properties of redox reaction from the micro particle level and build their own redox reaction cognitive model to solve the problem.They can even actively carry out scientific exploration of redox related experiments and experience chemistry The charm of the subject,and try to innovate and improve the experiment.This study takes the teaching method of "redox reaction" in senior high school education as an example.First,the concept and significance of the existing redox reaction in the students' minds of class 9 and class 13 of senior high school in Baoding city are tested and investigated in advance through the test paper.According to the test results,the problems found are improved on the basis of the existing teaching design to reflect the chemical nucleus "Macro identification and micro analysis","evidence reasoning and model cognition","experimental exploration and innovation consciousness" in mind accomplishment.Taking class(9)as the experimental class and class(13)as the control class,the teaching effects of the two classes were compared and analyzed by questionnaire.In the concept teaching,teachers can help students to establish effective models,guide students to explain the phenomena seen from the macro perspective,design experiments to verify the conclusions,and so on.Through the study of redox reaction as an example,this paper designs some teaching methods with practical significance for chemistry teaching,and conducts experimental research,hoping to find effective teaching methods to improve the core literacy of middle school students in chemistry,and to provide some research ideas forthe cultivation of the core literacy of chemistry. |
