Formation Process Study Of Students' Movement And Interaction Concept

In order to cultivate innovative and deep-level talents,the Ministry of Education requires active development of students' core literacy.The "General High School Physics Curriculum Standards(2017 Edition)" puts forward "Physics Concepts","Scientific Thinking","Scientific Inquiry","Scientific Attitudes and Attitudes".The four aspects of "responsibility" are the educational goals of physics,and the concept of physics is the foundation of the core literacy of physics,which plays an irreplaceable role in promoting the development of students.Mechanics is the foundation of the physics system.Related knowledge is closely related to real life.Researching the formation process of related motion and interaction concepts can enable teachers to understand the cognitive level of students and the next development direction in teaching.,So as to help students complete the construction of the knowledge system.The main research contents and results of this article are as follows:First,filter the important concepts under the theme of movement and interaction.Analyze the requirements of my country's compulsory education and high school physics curriculum standards,refer to the United States' New Generation Science Education Standards(NGSS),and conduct a survey of frontline teachers.After comprehensive analysis,the important concepts under the topic are selected,and the order of the textbooks is preliminary Draw a hypothetical diagram of the logical context of important concepts.Second,divide the students' cognitive level.According to the SOLO classification theory,the cognitive performance of each stage in the formation of the concept of movement and interaction of middle school students is divided into 4 levels.The specific performance of each level is as follows:Level 1: Able to memorize and retell the concepts and laws related to movement and interaction,but cannot use concepts and laws to represent physical problems,and the concept of movement and interaction has not been formed.Level 2: Able to understand a certain concept and law related to motion and interaction,establish contact with physical problems,apply related concepts and laws to perform simple analysis and calculations,and initially form the concept of motion and interaction.Level 3: Able to understand multiple concepts,laws and their interrelationships related to movement and interaction,establish connections with practical problems,and comprehensively apply related concepts and laws to solve practical problems,forming the concept of movement and interaction.Level 4: Able to fully understand the concepts and the nature of laws related to movement and interaction and their interrelationships,establish connections with practical problems,flexibly use related concepts and laws to solve practical problems,guide life and practice,and form a clear and systematic The concept of movement and interaction.The process of improving the level of students is the process of forming ideas.Third,the questionnaire survey.Refer to the logical context of important concepts,prepare test questions that meet different SOLO levels to survey students,use the Rasch model to analyze the survey data,revise some of the questions in the measurement questionnaire based on the analysis results,and then re-administer the test.Fourth,a concrete analysis of the formation process of the concept of movement and interaction among middle school students.According to the White diagram obtained after re-administering the test,it is proved that the level division is reasonable.In combination with the students' answers in the two-stage test,the logic diagram of important concepts is revised and supplemented,and a process diagram of the formation of the concept of movement and interaction is obtained..At the same time,this research also found that the formation of concepts is accompanied by the development of physical model construction.Students' understanding of important concepts under the theme of motion and interaction has probably gone through four stages: the first stage is to understand concepts such as speed and acceleration.Know that they are vectors,understand the concepts of gravity,elasticity,friction,etc.,know the synthesis and decomposition of force;the second stage is to link motion and force,know that force is the cause of changing the state of motion of an object,and understand Newton's three major motions The third stage is to construct motion models such as horizontal parabolic motion,uniform circular motion,simple harmonic motion;the fourth stage is to understand Coulomb's law on the basis of the law of universal gravitation.Newtonian mechanics explains the force and motion between charged particles,and finally transcends the ultra-distance action in Newtonian mechanics to construct the concept of motion and interaction in the "field".Fifth,on the basis of grasping the process of forming the concept of movement and interaction of middle school students,based on the ADDIE model,a unit teaching process that promotes the formation of ideas was compiled,and practiced with the unit "Relationship between movement and force",which verified that unit teaching is effective Promote the effectiveness of concept formation,and suggest that teachers create more problem situations in teaching,enrich experimental materials,set hierarchical teaching goals,and attach importance to formative evaluation.This research uses a combination of theoretical explanation and practical exploration to study the formation process of middle school students' sports and interaction concepts,in order to provide a certain reference for the teaching of physical mechanics in senior high schools.