Research On The Application In Teaching Design Of Two-dimensional Model Based On Chemistry Core Literacy

On January 16,2018,the Ministry of Education issued the curriculum program and subject curriculum standards for general high schools(2017 edition),adding the module of“Subject core literacy”to the main content of the original curriculum standards,and has carried on the careful division to the chemistry discipline core accomplishment level,they are “Macroidentification and micro-analysis”,“Concept of change and balance”,“Evidence reasoning and model cognition”,“Scientific exploration and innovation consciousness”,“Scientific attitude and social responsibility”,more emphasis should be placed on improving students' ability to solve practical problems through comprehensive application of knowledge.The People's Education Press' s 2019 edition of chemistry,a compulsory high school textbook,began to be used in some provinces and cities in September 2019 and rolled out nationwide in 2020.The contents of common inorganic substances and their applications in the course standards require not only to understand the main properties of elements and their compounds and their applications in production and life,but also to explore the properties of substances and realize the transformation of substances through chemical reactions,at the present stage,the teaching of element compounds in senior high schools in China is affected by the reduction of class hours,students' learning conditions,experimental conditions and many other conditions,therefore,how to improve the quality of classroom teaching under the existing conditions,truly return the classroom to the students,and pay more attention to the cultivation of students' ability than the traditional teaching materials is an important issue in the current implementation of new teaching materials.This thesis focuses on what is the core literacy of chemistry,how to implement the core literacy of chemistry by using the cognitive map of the two-dimensional model of Valence,and how to use the two necessary experiments of element compounds,The mutual transformation of different valence sulfur-containing substances as an example,the completion of the two-lesson teaching design,each teaching process at different levels of inquiry,student's ability spiral.In the context of real-life problem situations,students can be put in the real situation,apply chemical knowledge to solve complex problems in their daily lives,arouse their enthusiasm in studying chemistry,and develop their scientific attitude and sense of social responsibility,what chemistry really means to change your life.