Research On The Teaching Practice Of The Construction Of The Core Concept Of High School Chemistry

With the development of education reform,core literacy has become the focus of education reform and development in the 21 st century.It is also the direction of China's curriculum reform and development efforts.Chemistry is a key basic course in the natural sciences,and it is developing students' core literacy.It plays a very important role.It directly affects the formation of the necessary character and key abilities of students' lifelong development and social development needs.The latest high school chemistry curriculum teaching standards also clarify that high school chemistry literacy is an important part of the development of high school students' core literacy,and is a concrete manifestation of students' comprehensive quality.In the description of the basic concept of the course,it is mentioned that students should be guided to further study the basic principles and methods of chemistry,and form the core concept of chemistry.It can be seen that the construction of core concepts can help students develop and deepen the understanding of the perspectives and methods of material and chemical changes.Improve the ability to analyze and solve chemical problems,and develop a spirit of independent thinking,daring to question,innovation,and a rigorous and realistic scientific attitude.Teaching based on the core concept is one of the effective ways to implement the new curriculum standards,promote teaching reform,and develop students' core literacy.Based on the content of high-level chemical core literacy,this paper summarizes the core concepts of chemical core concepts based on the review of the core research concepts of chemical cores at home and abroad,defines the concept,and identifies the important core of high school chemistry textbooks.Concepts,summarizing the characteristics of core concepts;presenting the model conception of core concept teaching at the practical level,explaining in detail how each part is implemented and the relationship between each other,and studying the teaching strategy according to the characteristics of the core concept.In order to let front-line teachers have a good understanding,the author has carried out the teaching case design of the core conceptof acetic acid teaching.In order to prove that the core concept teaching has a positive effect on the cultivation of students' core literacy,this study also carried out experimental verification.The use of experimental classes and comparison classes on the formation of chemical core concepts,and the tracking analysis of core concepts and chemical achievements and the scientific analysis of students' choice of chemistry as the college entrance examination data,thus the effectiveness of core concept teaching practice.This study finds that the teaching of the core concept of chemistry guides students to think deeply in thinking through teaching design,promotes the development of cognitive structure of learning generation,and forms the ability to analyze and solve problems.It is an effective and effective way to cultivate students' core literacy.way.