Practical Research On PBL Teaching Mode In Senior High School Chemistry Teaching ——Taking "Non Metals And Their Compounds" As An Example

The general goal of chemistry curriculum was further deepened in the senior high school chemistry curriculum standard compiled in 2017,from the original emphasis on improving students' "scientific literacy" to developing students' "core literacy of chemistry discipline".This change officially opened the prelude to the teaching reform of basic education curriculum in the new era.How to implement the cultivation of discipline core literacy in the classroom of chemistry teaching,Thus,the implementation of the fundamental task of Building Morality and cultivating people has become a new challenge for front-line educators.Starting from the effective ways of cultivating core literacy,this study theoretically analyzes the advantages of using PBL teaching mode in cultivating students' subject core literacy,and verifies the cultivation effect of PBL teaching mode on students' subject core literacy in the teaching of non metals and their compounds by using the methods of literature research,questionnaire and experiment.This study mainly includes six parts: the first part is the preliminary preparation,which discusses the research status,research background,purpose,significance and methods at home and abroad;The second part is the theoretical guidance,which discusses the concept and constituent elements of PBL teaching mode and the theoretical basis of PBL teaching mode;The third part is the investigation and interview to understand the students' difficulties in learning the factual knowledge of chemistry such as nonmetals and their compounds and the current situation of teachers' application of PBL teaching mode;The fourth part is the research of teaching design,which analyzes the teaching content of non-metal and its compounds knowledge,designs the general links of PBL teaching mode,puts forward the design points of non-metal and its compounds teaching based on PBL teaching mode,and compiles the teaching cases of non-metal and its compounds;The fifth part is the overall design of practical research and the analysis of teaching practice effect;Finally,through theory and practice,it is concluded that the application of PBL teaching mode in chemistry teaching can not only improve students' subject core literacy and personal ability,but also improve the teaching effect of chemistry classroom.