A Study On Model Constructing And The Cultivation Of Model Cognitive Literacy

In recent years,driven by the new round of curriculum reform,the hot word "core literacy" has appeared in the educational circles of our country.“General Senior High School Chemistry Curriculum Standard(2017 Edition)” promulgated by The Ministry of Education,pointed out that Chemical Core Literacy includes five aspects,macro-identification and micro-analysis literacy,change concept and balance thought literacy,evidence reasoning and model cognitive literacy,scientific inquiry and innovation consciousness literacy,scientific attitude and social responsibility literacy.Each of these five aspects has its own emphasis and complements each other.Model cognitive literacy is of great significance for students to establish a thinking framework for solving complex chemical problems.Under the concept of core literacy,how to build a cognitive model in chemistry teaching and implement the cultivation of model cognitive literacy is still an urgent problem to be solved.Combining the theoretical research with the practical research,this paper about the cultivation of model cognitive literacy mainly adopts literature,questionnaire,teaching and experiment method.Based on the literature,the present research situation of model cognition is described,and the deficiencies of existing research about model cognitive literacy are analyzed,and the cultivation of model cognitive literacy is explored.The theoretical research of chemistry teaching based on model constructing and the cultivation of model cognitive literacy mainly includes three parts.Firstly,on the basis of“General Senior High School Chemistry Curriculum Standard(2017 Edition)”,this paper elaborates the understanding of model constructing,model cognitive literacy and the relationship between model cognitive literacy and problem solving process.Secondly,it puts forward the idea,process and principles of the whole unit teaching design based on the cultivation of model cognitive literacy,and sums up the common types of cognitive models in senior high school,aiming to develop students' model cognitive literacy.Finally,from the two aspects of "teaching evaluation" and "learning evaluation",the teaching evaluation about model constructing and the cultivation of model cognitiveliteracy is discussed.On the basis of theoretical research,this study takes the content of "Nitrogen Cycle" and "Sulphur Conversion" of Chemistry 1(compulsory)published by Shandong Science and Technology Publishing House as examples,designs the whole unit teaching based on the cultivation of model cognitive literacy,and carries out teaching practice.By using SPSS 23.0 and other software,the test results of the experimental class and the control class were compared and analyzed many times before and after the experiment.It is concluded that the whole unit teaching based on the cultivation of model cognitive literacy is conducive to forming structured thinking,establishing problem-solving ideas,improving analytical and problem-solving skills and developing model cognitive literacy.