The Study On Teaching Cohesion And Strategies Between Compulsory And Elective Courses In Senior High School Chemistry

The second edition of "General High School Chemistry Curriculum Standards(2017 Edition 2020 Revision)" further optimized the curriculum structure,adjusted the "Chemical Reaction Principles"course category to optional mandatory courses,and significantly increased the emphasis on elective courses compared to the previous one.However,the relationship between required and elective courses is difficult to grasp.In teaching,the required knowledge exceeds the standard and the repetition of elective content emerges endlessly.Therefore,the study of the teaching connection and strategies of high school chemistry compulsory and elective courses aims to help teachers improve the overlapping and disconnected situations between compulsory and elective classes,so that students can smoothly realize the transition from compulsory to elective.This research includes the following five parts:The ?:Introduction.Through a review and analysis of the current situation of teaching cohesion at home and abroad,it is found that the teaching cohesion between compulsory and elective courses is mostly one-way cohesion.There are few cohesive cases on how to cohere elective content and chemical balance in compulsory courses.Therefore,this thesis is based on Take chemical balance as an example to study the teaching cohesion and strategies of compulsory and elective courses,and determine its related research content.The ?:Research foundation.It defines the concept of teaching connection between compulsory and elective courses of chemistry involved in the above-mentioned research content,expounds the educational theory related to the research content,and lays the foundation for the follow-up teaching practice research.Secondly,use questionnaires and interview outlines to investigate high school chemistry teachers and students,summarize the problems existing in students' "learning" and teachers'"teaching" and analyze the causes.Part ?:Principles and Strategies.Based on the curriculum standard,interpret the relationship between the required and optional courses,explain the connection and difference between the two,and based on the above survey results,propose that the academic quality requirements and the chemistry should be followed in the teaching connection of the required and optional courses.The core literacy of the subject is the orientation and the five principles of the integration of teaching content.There are two implementation strategies and study curriculum standards for connecting electives in compulsory courses and connecting compulsory courses in electives.Seven strategies such as establishing linkages,creating problems,and contextual linkages.Part ?:Case design and practice.Based on the relationship between compulsory and elective courses,it is found that the knowledge points of chemical balance are involved in both compulsory and elective courses.The entire content system of chemical balance is complicated and there are many knowledge points.Therefore,this research selects the PEP Compulsory 2 "Limits of Chemical Reactions" And elective 4 "Chemical Balance" for case design and practical research.First,analyze the academic and content requirements of the two parts of the curriculum standard,grasp the depth and breadth of the content between the two,and use the connection points between the seven cohesion strategy frameworks mentioned above;second,take a middle school in Jingyuan,Gansu The 10 classes are experimental classes,and the 11 classes are the control classes for teaching practice.The experimental classes are carried out by studying the content of compulsory and elective textbooks,designing guided learning plans,carrying out self-convergence,creating problems,context cohesion,and using information technology to assist teaching cohesion.In case design practice,the control class uses the regular teaching process to practice;finally,after the practice,the test scores and interviews are used for measurement and evaluation.It is found that the average score of the experimental class is about 66.14 points,and the score of the control class is about 60.15 points.The interview results also show The experimental class's ability to understand the concept of chemical balance and transfer application ability is significantly better than that of the control class.Part V:Conclusion and Outlook.The results of questionnaires and interviews show that the difficulty of compulsory and elective courses is wide,students are difficult to learn,and teachers are difficult to grasp the depth and breadth of the content of required and elective courses;through experimental research and comparison,it is found that the teaching cohesion and strategies of compulsory and elective courses are helpful Students build a knowledge framework,improve classroom teaching efficiency,and improve student performance.Therefore,this research has a certain positive effect on students' learning and teachers' teaching,and it is expected to provide reference for frontline teachers' teaching.