The Teaching Strategies Investigation And Practice Of "Simple Machines And Work" In Junior Physics

As a mandatory knowledge in junior physics education,“simple machines and work”is a significant part, and takes10%-15%in the high school entrance examination. It’simportance of this chapter is reflected for the transfer from mechanical motion tomechanical energy. Work and energy which is one of the most abstract concept is thephysical quantities with close connection.Mechanical energy which is the most commonenergy takes an important states in junior physics education.Based on the instruction of constructivism,“learning by doing”and “zone of proximaldevelopment” theory. The thesis have made a deep investigation about “simple machinesand work” in junior physics. According to knowledge analysis,contrast current curriculumstandards with former, and target learning of high school entrance examination, itidentified the importance and difficulty points. Referring to the questionnaire aboutstudents’ preconceptions and learning difficulties, it understands positive transfer functionwith the psychology of physics learning and correct preconception.It have showed currentsituation of physics learning in school and teaching status, analyzed the main cause forproblem occurring and gave a conclusion. Based on the investigation above, gaveproposals for teaching strategies, and made teaching experiments proposed in this thesis. Itwas showed effective, hopefully it could provide some valuable reference for thecompilation of teaching courses in the junior school.