Research On The Theme Learning Progression Of "Circuits And Their Applications" In Junior And Senior High School Physics

The new version of the General High School Physics Curriculum Standards emphasize the importance of the broad concepts of the subject and follow the cognitive rules of students when arranging and teaching the curriculum content,as well as the newly issued Compulsory Education Physics Curriculum Standards in2022.The learning progressions proposed in the field of science education in 2004 correspond to the integration of knowledge proposed by both the new standards and the college entrance examination evaluation system.Learning progressions describe the development of students’ ways of thinking when they learn a topic over a period of time,and they use core concepts and cognitive laws as key words to meet the demands of the times on secondary school students.The study of learning progressions can promote the coherence and integration of students’ learning and is an effective basis for teachers to evaluate students’ stages.Therefore,the study of learning progression has been a hot research topic in the field of education at home and abroad.In this study,we take "circuits and their applications" in electricity as an example to study the progression of learning,because students do not have much visual experience and knowledge about circuits.Therefore,this study is a progressive study of "circuits and their applications" in electricity.This study constructs a learning progression framework for the topic of " circuits and their applications" in junior and senior high schools,from the perspective of students’ cognitive development paths,using educational research methods such as literature analysis and survey methods,and conducts specific case studies based on the framework.The innovation of this study lies in the construction of the progression framework at five levels: experience,mapping,association,concept,and integration,which is expected to help students to have a systematic and clear understanding of the vast array of circuit knowledge,to form an overall framework of the core concepts of circuits and their applications,and help teachers have a general understanding of what level students should reach in their learning of circuit-related knowledge,so that they can evaluate students in a timely manner.The main contents of the paper are as follows:Firstly,a preliminary framework for learning progression was constructed through theoretical research.The curriculum standards and content of the middle and high school were analyzed so as to filter out three core concepts: "circuits","electrical energy" and "Ohm’s law".Then,using the complexity level as the progression variable,five progression levels were identified: experience,mapping,association,concept,and integration.After that,the three core concepts were used as progression dimensions respectively,and the content of each level under each dimension was initially determined by analyzing the curriculum standards and course content based on students’ cognitive state.Secondly,the progression framework was tested through an empirical study.Firstly,the two sets of test questionnaires developed were administered in a small-scale preliminary test in middle and high schools,and the overall quality of the two sets of measurement questionnaires was analyzed by Rasch model(which can estimate both item difficulty and individual ability),and the questions that did not meet the quality requirements were modified.The modified questionnaires were then administered to a large sample of middle and high schools,and the overall quality of the sample was analyzed by Winsteps software,and the preliminary progression framework was modified by using White map(which can observe the correspondence between individual ability and test difficulty)to obtain the final learning progression framework.Finally,the anchor test questions were used to equate the two sets of measurement questionnaires in middle and high school to obtain the overall White map for the secondary school level.Finally,specific case studies were conducted.Combined with the science teaching design model proposed by Guo Yuying’s team,the three sections of "Series and Parallel Connections" in middle school,"Resistance of Conductors" and "Energy Transformation in Circuits" in high school were used as examples for complete teaching design.The main conclusions of this study are:(1)The core concepts of "circuits and their applications" are "circuits","electrical energy" and "Ohm’s law".(2)A progression framework for the topic of "circuits and their applications" in junior and senior high school physics was constructed by using the three core concepts as progression dimensions in five levels: experience,mapping,correlation,concept and integration.(3)Explains how to design instruction based on learning progressions and put it into concrete teaching practice.