Research On Case Development Of High School Chemistry Micro Curriculum Based On Chemical Core Literacy

With the development of information technology,the teaching model of "micro courses" emerges as the times require.It greatly expands the channels for people to learn,and leads to the learning mode convert from original single line or point-to-surface to more diversified and stereoscopic.Thus,it also promotes the reform of teacher's teaching method and the students' learning method.As a theoretical and practical discipline,application of "micro courses" has been highly praised in chemistry teaching.At present,the chemical educators have developed a large number of micro courses.However,how to improve the scientific nature of the development of the micro curriculum,how to introduce the micro course to improve the effectiveness of students' learning,and how to reconstruct the new teaching mode under the background of micro course is a problem to be solved urgently.With proposing the idea of core literacy,the combination of core literacy and micro-course will produce subtle "chemical reaction".This topic focuses on the "chemical core literacy" and "micro course",first,it expounds the connotation of the core literacy of chemistry,and then summarizes the current development status of the chemical micro course through a large number of literatures and interviews,and puts forward the development mode of chemical micro course integrated with chemical core literacy in senior high school.The model is ADDIE(A: Analysis;D: Design;D: Develop;I: Implement;E: Evaluate).Based on this,a teaching design template and a script template for micro curriculum development are built.Through interviewing teachers and students,we found that the module of material structure and property plays an important role in senior school chemistry teaching.Based on the ADDIE model,these micro courses of "covalent bond" "electronic cloud and atomic orbit" "diamond structure" were developed by integrating into the "macro identification and micro analysis","evidence reasoning and model cognition" and other chemical core literacy.In the process of case development,the micro dynamic diagram of "sparking College" software was used to achieve construction of the cognitive model.According to the case development of micro course,this paper summarizes the suggestion for the development of micro course case: to strengthen the systematic design and development of micro curriculum,to promote the integration of chemical core literacy and micro course,and to introduce new technology in the development of micro curriculum.The development of micro curriculum should pay attention to the needs of students.To ensure the efficiency of the development of micro curriculum,a micro course development group should be built.This study provides a new idea for senior high school chemistry teachers to develop micro courses,and provides a case reference for the development of chemical micro courses based on chemical core literacy.