Practice And Research Of Model Method Based On Core Literacy In Review Of Chemistry In Senior Three

The new curriculum standards require students to develop the core qualities of chemistry subject from five aspects." Model cognition " requires students to analyse a problem situation,obtain key information and use a modeling approach to construct a model to solving problems when they encounter a chemical problem.The current entrance exam questions focus more on the analysis of problem situations and the acquisition and processing of unfamiliar information,with relatively little memorization of content examined.The traditional teaching mode of problem solving is no longer able to achieve a better review effect.At present,the related research contents are mainly model concept,how to model,model method teaching and so on,but the practical research on model method in teaching chemistry subjects is relatively less than other subjects,and the practical research in senior revision is even less,and the teaching of model method is important to improve the efficiency of students' revision,so the practical research on the teaching of model method in senior revision is very necessary.Therefore,it is necessary to study the practice of modeling method in senior revision.To complete the study,four research methods are used in this paper:(1)The first method is the literature research method,reading the literature to understand the study of modeling methods in practice in teaching and learning and find the theoretical basis of the paper and the framework of the paper.(2)The second one is the text study method,in order to determine the practical teaching content and clarify the examination hotspots,this study try to sort out the relevant chemical knowledge,organize the chemistry test questions of the national paper of the past three years,.(3)By the questionnaire survey and interview,to understand the current teaching situation of the model method,this paper designs a questionnaire to survey the students of senior three,and interviews the teachers of senior three.(4)Practical research method is used to infiltrate the teaching of modeling method into daily review teaching,compare the teaching effect of traditional teaching and modeling method teaching,and draw conclusions.In this paper,the modeling method is permeated into two types of review contents.It includes the construction of chemistry knowledge content network and chemistry examination questions.The knowledge network is designed and practiced with the ideas of context introduction,knowledge review,model construction,model revision and model application.In chemistry test review,the teaching design and practice are based on the ideas of college entrance examination paper,model construction,model revision and model application.The five parts are contained within this paper.In the first part,we review literature and data,conduct literature and text analysis,understand the status of domestic and foreign research,and propose the research significance,research ideas,and research methods of this paper.In the second part,the concepts related to chemical modeling,modeling,teaching chemical modeling methods,and core literacy in chemistry are introduced in the context of literature compilation,and meaningful learning theories and constructivist theories are elaborated.In the third part,senior three students were investigated to understand the review of students and the model of teaching knowledge;Teachers in senior three were interviewed to understand the implementation of model method teaching.In the fourth part,the teaching strategies of the model method are as follows,such as constructing the knowledge network model of Sulfur and its compounds;taking the curve analysis of the distribution of particles in solution and p H as an example,constructing the thinking model of the test questions of the relationship between ion concentration and curve.The research selects two classes of the same level which the author teaches to carry on the practice contrast teaching,and analyzes three test results of the students diagnostic test 1 in November,united test of information in December,diagnostic test 2 in January.The data proved that the students' performance in the experimental class increases more.Students are approbated and welcome to the teaching of the model method through the analysis of the post-practice student interviews.In the fifth part,we analyze the effectiveness and shortcomings of the practice and draw conclusions about the practice.Based on the practice and research of core literacy-based modeling method in senior chemistry review,the following conclusions can be drawn:(1)modeling method teaching can improve students' review confidence and class participation;(2)modeling method teaching can improve students' thinking ability and problem solving ability;(3)modeling method teaching can develop students' core literacy;(4)modeling method teaching can improve review efficiency and students' academic performance.At the same time,teachers' professionalism will be improved when they are taught modeling methods,promoting continuous learning and improvement.There are also many shortcomings due to the author's little experience and limited research time.However,there is no doubt that the application of the model approach to senior revision has positive implications for both students' revision efficiency and teachers' progress,and it is worthwhile for scholars to continue to study further.