Analysis And Teaching Practice Research On The Connection Of Chemistry Concepts In Junior And Senior High Schools

The 2003 edition of the "General High School Chemistry Curriculum Standard(Experiment)" clearly pointed out: "The general high school chemistry curriculum is a basic education curriculum that is connected with the nine-year compulsory education stage Chemistry".The "General High School Chemistry Curriculum Standard(2017 Edition)" further clarifies the nature of the high school chemistry curriculum: "The general high school chemistry curriculum is a basic education curriculum that is connected with the compulsory education chemistry or science curriculum,and is the foundation for the implementation of morality.It is an important carrier of tasks,development of quality education,promotion of scientific spirit,and enhancement of students' core literacy ".It can be seen that the chemistry curriculum of junior high school and senior high school is closely connected with each other,especially in the study of chemical concepts.The chemical concepts of junior high school and high school constitute a complete system of middle school chemistry concepts.The concept of chemistry is the focus of chemistry learning,an important basis for students to learn chemistry well,which is significant in the learning of other chemical knowledge,and plays a vital role in the whole middle school chemistry learning.Chemical concept has its special abstraction,stage and system.Junior high school chemistry concept is scattered,while high school chemistry is more abstract and systematic.After entering senior high school,students are faced with various and abstract chemical concepts,unable to find appropriate learning methods,and it is difficult to adapt to the study of high school chemistry,leading to the decline of learning interest and academic performance,which seriously affects students' confidence in learning chemistry.The characteristics of chemical concepts exist objectively,and the main reason for students' learning difficulties is the difference between chemistry teaching and learning in junior and senior high schools.With the continuous advancement of senior high school chemistry curriculum reform in recent years,the connection problem of chemistry concepts in junior and senior high schools is increasingly prominent.How to carry out the connection teaching of chemistry concepts between junior high school and senior high school,so that students can more smoothly adapt to the study of high school chemistry,has become a challenging problem in the middle school chemistry teaching.Therefore,whether being a junior high school chemistry teacher or a high school chemistry teacher,it is a very important and necessary course to study the connection of junior and high school chemistry concepts.This topic combines the author's three years of junior high school chemistry teaching and three years of senior high school chemistry experience.Through sufficient research and interviews,and consulting relevant literature and educational theory,the author will study the connection between junior and senior high school chemistry concepts and carry out teaching practice,trying to explore some effective teaching strategies for connection.The majority of chemistry teachers provide reference for teaching the connection of chemistry concepts between junior and senior high schools.This article is divided into the following five parts:Part one: Introduce the research background of this topic,explain the content and methods of the research,and indicate the purpose and significance of the research.The second part: Define the relevant concepts of this topic and analyze the theoretical basis used in this article.The third part: through questionnaire surveys and interviews,from the three aspects of students,high school teachers and junior high school teachers investigate and analyze the results of the teaching of the link between junior and senior high school chemistry concepts.The fourth part: Point out the problems in the connection of junior and senior chemistry concepts from the three aspects of teaching materials,teachers and students,and propose corresponding strategies.The fifth part: Take a junior high school course "Particles of Substances" and a high school course "Redox Reaction" as teaching practice cases,through summarizing and reflecting,clarify the value of the research on this subject,point out the deficiencies in the research and put forward the prospect of the future.