Teaching Research On Centripetal Force And Centripetal Acceleration Of Uniform Circular Motion

The Ordinary High School Physics Curriculum Standard(2017 Edition)integrates the three-dimensional goals of knowledge and skills,processes and methods,emotional attitudes and values,and condenses the core literacy of physics.After the curriculum standards were promulgated,many education experts and front-line teachers are committed to the teaching mode of improving students' core literacy.As a quasi-teacher who will stand on the platform,the author takes the question as one worthy for study,which is about how to improve the core literacy of students' physics in teaching.So the content of central force and centripetal acceleration of uniform circular motion in the high school physics textbook is selected as research object.Through the research,the author hope to have some harvest and provide reference for other teachers' teaching.Based on the research of the predecessors,the teaching objectives of this section have been determined according to the curriculum standards and the requirements of the syllabus.In order to accurately grasp the examination method of the centripetal force and centripetal acceleration of the college entrance examination,and the scores of the relevant test questions,the physical essays of the college entrance examination including the centripetal knowledge points in the past five years have been analyzed statistically.In order to accurately grasp the teaching,a textbook analysis and students' analysis of the content have been conducted,laying the foundation for teaching design.In view of the deficiencies of the existing centripetal force teaching aids,the lack of examples of the textbook content and the students' difficulties in the study,the new type of centripetal force exploration teaching aid?rotating swing joint force verification teaching aid and demonstration the cause of a uniform circular motion teaching aid have been designed and produced,using for classroom teaching in this section.Their theory of design and production process are introduced in detail in this paper.Furthermore,base on the theoretical research andexperimental teaching aids,a teaching plan with inquiry experiments has been designed to promote students' core literacy,which takes the core literacy and learning theories as background.