Cultivating Chemistry Core Literacy Of "Evidence Reasoning And Model Cognition" Of High School Students By Micro-class

With the rapid development of the social economy,society's requirements for comprehensive talent literacy are becoming higher and higher.“Core literacy”has become a hotspot in domestic and foreign research.The development of core literacy depends on the cultivation of core literacy in the discipline.One of the five dimensions of core literacy in chemistry helps students form a unique way of thinking in chemistry.At the same time,micro-classes,as a new type of teaching resources under the background of the Internet,are popular among teachers and students.Therefore,this article aims to develop teaching practice research in high school chemistry teaching,and explore the effect of using micro-courses to cultivate students'evidence reasoning and model cognitive literacy.In this paper,through reading the literature,we can understand the connotation and research status of micro-classes,evidence reasoning and model cognitive chemistry core literacy.According to the literature review results combined with the actual situation of the practice school,a questionnaire was written to investigate the understanding and application of the micro-class and evidence reasoning and model cognition of the high school students in the school.On the basis of literature and investigation,this paper analyzes the advantages of cultivating students'“evidence reasoning and model cognition”literacy based on micro-classes,and proposes teaching ideas for cultivating students'“evidence reasoning and model cognition”literacy through micro-classes.Analyze the content of the first high school chemistry compulsory textbook,select knowledge points suitable for cultivating students'evidence reasoning and model cognition literacy in micro-classes,and design and produce a two-dimensional chart of SO₂prices based on the previous teaching ideas and the results of the questionnaire.The three courses of model,gas molar volume mathematical model,and exploration of the composition of chlorine water are used in chemistry teaching practice to explore its impact on the cultivation of evidence reasoning and model cognitive literacy of high school students.Finally,by preparing relevant test papers,the students in the experimental class are tested for knowledge and interviewed to evaluate the teaching results.The results of the study show that the process of cultivating students'“evidence reasoning and model cognition”literacy in micro-courses can improve students'interest in learning and learning effects;it effectively solves the problem that the reasoning and modeling processes in teaching cannot be refined,and promotes.Students'evidence reasoning and model cognitive chemistry core literacy improvement;help students master chemistry knowledge,at the same time improve students'ability to solve problems comprehensively based on evidence reasoning.