Research On High School Chemistry Teaching Strategy Based On "Evidential Reasoning And Model Cognition"

In response to the requirements of implementing the core quality of the new curriculum standard,this paper understands the requirements of the new curriculum standard and the current situation of the change of teaching materials by means of literature review and practical investigation,and establishes the purpose,significance and content of the research on chemistry teaching strategy in Senior High School based on "evidence reasoning and model cognition".Through the understanding of the current situation of the implementation of core literacy,the necessity of research is further determined.After the statistical analysis of the relevant contents of each theme of the textbook,this topic puts forward the corresponding teaching strategies for the relevant contents of the five themes of the textbook:(1)integrate the basic methods of chemical experiment with the subject knowledge.(2)Pay attention to the modeling guidance of core concepts.(3)A lot of real chemical process background has been added in the review and improvement column.(4)Clarify the relationship between location structure nature use.(5)Avoid making model construction a mere formality.Then a one-year teaching practice research was carried out to reflect and test the effectiveness and feasibility of the strategy in implementing the literacy of "evidence reasoning and model cognition".The results show that in response to the requirements of the new curriculum standard,the compilation of teaching materials is more concise,clear and logical.Using the teaching strategies proposed in the article for teaching has a significant effect not only on the cultivation of students’ core literacy of "evidence reasoning and model cognition",but also on the improvement of students’ grades.