Research On The Teaching Design Of Junior High School Chemistry Unit Based On The Concept Of Big Concept

Under the background of the new round of curriculum reform and the double reduction policy,the Chemistry Curriculum Standards for the Compulsory Education Stage(2022edition)has updated the concept and curriculum objectives of the chemistry curriculum,requiring the party’s education policy to be concretized and detailed into the curriculum,and clearly put forward the curriculum content system with the construction of large concepts as the core.The unit teaching mode based on the concept of discipline opens up a new path for teachers to conduct classroom teaching research,implement strong curriculum quality improvement,and explore the construction of teaching and research community.The research content of this paper mainly includes the following three parts: First,This paper analyzes the current situation of unit teaching of junior high school chemistry teachers to construct large concepts,and understands the understanding,implementation and value recognition of chemistry teachers in large unit teaching.Second,based on the “ADDIE”model,the unit teaching process based on the concept of the discipline was developed,and the specific links are: the establishment of the unit theme,Design of unit objectives,implementation of unit content,Evaluation of unit teaching and design unit teaching cases based on the big concept of chemistry.Third,case practice is carried out in educational practice,SPSS26.0 software was used to evaluate students’ core literacy level,and the teaching effect was tested and evaluated in the form of interviews and questionnaires.According to the research results,unit teaching led by the concept of chemistry was an important approach to promote the reform of chemistry education and teaching,adapt to the future development of chemistry education,and implement the cultivation of students’ core literacy in chemistry.Large-unit teaching makes the course content systematic,structured and literate,thereby promoting students’ understanding of concepts and the essence of disciplines and the formation of thinking methods,and promoting the realization of quality improvement and burden reduction.This study aimed to provide learning and teaching assistance for teachers and students,and to provide an effective reference for unit teaching based on big concepts in the new round of educational reform.