Research On Reverse Teaching Design Oriented By Chemistry Core Literacy

Reverse design is a teaching mode based on the framework of "goal-evaluation-activity" and is suitable for unit teaching.Its advantages lie in that it emphasizes goal-orientation and gives priority to evaluation.The new round of curriculum reform advocates the development of the core literacy of students.How to make the core literacy come true and reach an evaluation that points to the cultivation of chemistry core literacy has become a problem facing frontline teachers.This research combines the cultivation of the core literacy of the chemistry subject with the reverse teaching model for teaching design,aiming to improve the core literacy of students and develop the thinking of the chemistry subject.This paper is divided into six parts.Part I:preface.Based on the background of the new curriculum reform,the proposal of the core literacy of the subject and the implementation of new textbooks,by analyzing the research status of reverse teaching at home and abroad,it is found that there are few researches on unit teaching combining core literacy and reverse teaching,which is currently in the preliminary exploration stage.Based on this,the research contents and ideas are determined,the corresponding research methods are put forward,and the research objectives and significance are summarized.Part II:related concepts and theoretical basis.This part defines the concepts involved in reverse teaching research,and conducts research under the guidance of structuralism,target classification and multiple intelligences.Part III:the investigation of the present situation of high school chemistry teaching.Taking teachers in a middle school in Shuozhou,Shanxi as the research objects,the questionnaire and interview survey found that some problems in current teaching,such as single teaching evaluation method and insufficient implementation of core literacy,which provides a reference for the quality-oriented reverse teaching design.Part IV:the design content of the reverse teaching oriented by the core quality of chemistry.Based on the current teaching situation,the core literacy-oriented reverse teaching design should be followed in the goal,content design principles and classroom implementation strategies.Part V:case design and implementation.Through the analysis of the curriculum standards and textbooks,the PEP compulsory one "Ion Reaction" related content is selected to construct the unit.Based on the three stages of reverse teaching,the unit teaching case of "Ionization and Ion Reaction"is designed.According to the teaching theme,it is divided into three classes:"The concept of electrolyte,non-electrolyte,and ionization","Ion reaction" and "Application of ion reaction".In the teaching design,the teaching objectives are first refined according to the requirements of the curriculum standards,and then the evaluation tools such as goal-oriented evaluation scales and learning plans are designed.Finally,the relevant teaching activities are designed to achieve the integration of teaching evaluation.In order to test the effectiveness of the reverse teaching model,traditional teaching design and reverse teaching design were used for teaching practice in the control class and the experimental class,respectively.The practical effect was evaluated from three aspects:test questions,questionnaires,and interviews.The test test data shows that the average unit test score of the control class is 81.32,and the experimental class is 84.41.The questionnaire data shows that in the core literacy assessment of each chemistry subject,the total score of the experimental class's attitude is higher than the score of the control class;69.57%of the students in the experimental class approve this teaching method.Through interviews with front-line teachers,it is learned that this model helps to cultivate students' core literacy.Part VI:conclusion and prospect.According to the results of practice,the core literacy-oriented reverse teaching model is effectively implemented in high school chemistry classrooms,which can transform students' learning styles,enhance their core literacy and improve chemistry performance.