Use The Items Around You To Carry Out Comprehensive Exploration Activities Of High School Dynamics

The new curriculum standard proposes that physics teaching should develop students’ core literacy and provide lifelong learning for students.In the future,students will face more problems in life than exercises in books.Therefore,it is particularly important for students to transform complex real problems in life into forms similar to exercises,and dig out the physical processes and physical conditions contained in them,which is particularly important for students’ lifelong physical learning.With the implementation of the new curriculum standard,scholars call for returning the classroom to students,cultivating students’ scientific inquiry awareness,cultivating students’ scientific inquiry ability,and encouraging the implementation of inquiry-based teaching in the classroom,which puts forward new requirements for front-line teachers’ teaching ability.Developing in-depth materials from life and designing a complete and innovative inquiry activity requires teachers to have keen insight,which requires high requirements for teachers’ own basic literacy.In practical teaching,there are not many simple,interesting and comprehensive exploration activities.This exploration activity designed the hardbook paper tape activity in two cases.The first situation is to fix the 6cm wide paper tape between the legs of the horizontal stool,put a thick dictionary on the paper tape,and drop the hard book from a height of 20 cm to hit the thick dictionary and paper tape.The second situation is to remove the thick dictionary,and then drop the hard book from a height of 20 cm and directly hit the paper tape.In the first case,the paper tape is not broken,and in the second case,the paper tape is broken.The contrast between the two situations produces a contrast,which stimulates students’ thirst for knowledge and exploration.In order to understand the physical mechanism behind the two situations,the exploration activity is carried out in three stages.The first stage is to discuss from the perspective of kinetic energy change;the second stage is to measure the maximum deformation elongation when the paper tape is pulled off and the maximum tensile force that 1cm wide paper tape can withstand,that is,to measure the deformation elong Strength;the third stage is to specifically analyse and discuss the reasons for paper tape breakage and discontinuity in the above two situations from the perspective of interaction force.This exploration activity involves free fall motion,collision,momentum theorem,kinetic energy theorem,Newton’s laws of motion,etc.It is not easy to solve these problems,and students need to comprehensively apply the knowledge of physics they have learned.The author hopes that through such an activity,students can be inspired to integrate the knowledge they have learned,train students’ scientific exploration ability,and develop students’ core literacy.At the same time,I also hope to provide some reference for front-line teachers to carry out a complete comprehensive exploration activity using the items around them.