Research On The Integrated Teaching Design And Evaluation System Of "Teaching,learning And Evaluation" In High School Chemistry

Since the new curriculum reform,with the promotion and implementation of core literacy,the relationship between classroom teaching and evaluation has been paid more and more attention.Chemistry Curriculum Standards for Senior High Schools(2017,2020 revised edition)put forward the integration concept of "teaching,learning and evaluation",and emphasized the importance of establishing a "literature-based" chemistry learning evaluation concept,giving full play to the function of evaluation in promoting the comprehensive development of students’ core qualities in chemistry.For a long time,teaching inertia leads to the fact that in the actual chemistry classroom,the single evaluation method based on pen and paper test still has a certain universality.This behavior will inevitably lead to the separation of teaching and evaluation.At the same time,as the integration of "teaching,learning and evaluation" is abstract and no specific implementation plan is given in the new curriculum standard,it is difficult for front-line teachers to implement the integration of "teaching,learning and evaluation" in chemistry classrooms.Therefore,it is necessary to construct a teaching design model and evaluation system that can promote the relationship between teaching,learning and evaluation in chemistry classroom teaching.In order to provide front-line teachers with concrete implementation plans to promote the integration of "teaching,learning and assessment" in chemistry classrooms and to promote the full integration of assessment and teaching,this study constructed an instructional design model and a classroom assessment system according to the requirements of the new curriculum.Finally,based on the model,a case study was designed for a part of the high school chemistry textbook.Through this study,the following results were obtained: firstly,a teaching design model for the integration of "teaching,learning,and assessment" in high school chemistry classroom was constructed.The main line of "teaching,learning and assessment" was used to discuss the implementation method of the model in four aspects: objectives,tasks,strategies and activities.Secondly,the evaluation system of "teaching,learning and assessment" in high school chemistry classroom was constructed.The design of the classroom evaluation system was extracted with the help of chemistry academic quality level and chemistry subject competence elements,and the evaluation scales of chemistry concept class,chemistry experimental investigation class,chemistry problem class and chemistry review class were constructed with the teaching process as a clue.Finally,the above model was applied to a sample of a high school chemistry textbook,and the teaching and evaluation cases of a concept class,an experimental investigation class,an exercise class,and a review class were selected,and the level of students’ performance under each evaluation task index was refined through specific problem situations.Through the teaching and evaluation cases,it can be found that the theoretical model constructed can be well applied to the specific teaching design to realize the integration of "teaching,learning and evaluation" in high school chemistry classroom.