Research On The Teaching Of "Chemical Equilibrium" In Senior High School Based On Model And Modeling

With the promulgation of the new curriculum standard,the core accomplishment has become a new point of view in the middle school education teaching research.As one of the five core qualities,“Evidence-Based Reasoning and Model-Based Thinking”fully highlights the key role of chemical model and modeling in daily teaching,and its importance is self-evident.Carrying out chemistry modeling teaching in senior high school is of great practical significance for promoting students' in-depth learning and cultivating advanced thinking,improving students' interest in chemistry learning,and it is of great practical significance to change students' learning style,improve teachers' teaching concept and level,and comprehensively promote the teaching reform of “attainment-oriented” chemistry.At present,modeling and modeling,as a new teaching theory and teaching method,are highly praised in science education and teaching abroad.Modeling teaching,as an efficient teaching method,has been widely used in mathematics and physics,but there is little research in chemistry teaching in China.This paper mainly adopts documental analysis,questionnaire survey,behavioral approach and other research methods.By analyzing related literature at home and abroad,determine the research goal and theme.On the basis of discussing the classification of model and chemical model,the connotation of modeling,the position of chemical equilibrium in teaching and the theory of modeling teaching,In the early stage,the current situation of high school chemistry modeling was investigated by questionnaire and statistical analysis to provide reference for the subject.This study focuses on the research of thinking model in the process of high school chemistry learning,explores the application of the modeling teaching mode and strategy,put forward the teaching steps of modeling and“chemical equilibrium” topic modeling teaching practice.In this study,two classes ofthe same level in No.5 middle school of Qian Guo county from Jilin province were selected as subjects to conduct a study on the topic of “chemical equilibrium” in high school based on model and modeling under the background of core literacy.About the model before and after contrast,chemistry discipline core literacy,chemistry discipline study interest and the change of chemical subject learning achievement,etc to test the effect,and formed certain learning strategies and the typical cases based on the model and the modeling of chemical subject learning content,in order to promote the students' ability of model identification and modeling,overall promote the students' problem solving ability,At the same time,it also provides a possible way for the teaching of chemical equilibrium.Through the understanding of the above links,the following conclusions can be drawn: the teaching based on model and modeling can improve students' learning interest in chemistry,cultivate students' core accomplishment in chemistry to a certain extent,and improve students' performance in chemistry,which is an effective teaching method.The teacher should help the students to set up the model consciousness,and guide the students to express the model in a proper way.Of course,in the process of modeling teaching implementation,teachers' ideological recognition and attention,careful design and organization,timely evaluation and method guidance also have an important positive impact on the practical effect.