Chemical problem solving based on real situations is the key content of current basic chemistry curriculum implementation and educational research,and situational.problem solving has a profound impact on the cultivation of students’ key abilities and the improvement of their core chemistry literacy.The compulsory education curriculum reform requires that in the implementation of the chemistry curriculum in the junior high school,it is necessary to focus on cultivating the chemical problem-solving ability of junior high school students in real situations.In the practice of chemistry teaching,the author found that the ability of junior high school students to solve situational chemistry problems is relatively weak.By exploring the current situation and influencing factors of junior high school students in solving situational chemistry problems,this topic puts forward the principles and strategies of situational problem solving teaching,and analyzes six specific teaching cases in order to provide reference for the front-line teaching of junior high school chemistry teachers.The following work has been completed in this topic:Concepts such as context,problem solving,integration of teaching evaluation,and core literacy of chemistry are defined and theoretically analyzed;using contextual cognitive cognition theory,constructivism theory and problem solving theory,etc.,to explore the impact of contextual problem solving and development on students’ chemistry The relationship between the core literacy of disciplines,and the principles and methods of analyzing situational problem solving in the implementation of junior high school chemistry courses.Using the case study method,the teaching design and implementation practice of situational problem solving are carried out according to the different contents of the chemistry course in junior high school,and the teaching effect of traditional teaching is analyzed and compared.According to the different performance of junior high school students in the chemistry classroom of situational problem solving teaching,the possible factors affecting the ability of junior high school students to solve situational problems are analyzed,and the teaching strategies to improve the ability of junior high school students to solve chemical situation problems are explored.The teaching of chemistry situation in middle school can lay the foundation for students to adapt to the development of social life and lifelong learning in the future,so that students can construct knowledge system,improve subject understanding,develop subject thinking and promote the improvement of students’core literacy. |