Study On The Teaching Strategy Of The Concept Transformation Of Junior High School Students

Helping students to establish and master the concept of physics is the key to mastering the physics course,while the wrong concept is the stumbling block of physics concept teaching,which is one of the main influences on physics teaching.When learning mechanics knowledge,students in Junior Middle School haven't been able to learn mechanics knowledge effectively due to the relatively abstract concepts of mechanics of Junior Middle School.In the process of learning mechanics knowledge,the former concept of students has a great influence on the learning effect.Before students study the mechanical knowledge,teachers should understand students' errors existing in the former concept and the causes,and aim at using the effective transformation strategies on students' errors of previous mechanics concepts,contributing to change wrong former concepts so as to make students form scientific concepts of mechanics.The essay chooses Movement & Force and Buoyancy Part in Grade Eight in the Junior Middle School as the research content,teasing out the relevant research achievements which are based on the mechanics of the former concept and concept transformation strategies,making questionnaire,investigating the students' mechanical concept,understanding the existence of students' errors of the former mechanical concept which were made more before,analyzing the causes of students' wrong former concept in related knowledge mechanics.In view of the actual situation of the students' errors,the transformation strategies are summarized and the transformation strategies are implemented.With the guide of Vygotsky's Theory of the Zone of Proximal Development,Piaget's Theory of Cognitive Development Mechanism,Isobel's Meaningful Learning Theory,Constructivism Learning Theory and Concept Transformation Theory,The writer combines the existing research results and summarizes the change of teaching strategies on the former concept of mechanical errors of students in Junior High School to investigate the former concept and causes of mechanics in Junior Middle School students.So the writer chooses four teaching strategies to practice.They are: creation cause significant cognitive conflict,using set situation experiment situation of students' autonomous exploration,based on the cooperative learning group discussion,the method of analogy to abstract image teaching strategies.Continue to summarize and put them into practice.Research shows that: there are some effective ways to transform the former concept of mechanical errors of students in Junior Middle School such as setting situation caused significant cognitive conflict,creating experiment situation of students' autonomous inquiry,based on the cooperative learning group discussion,USES the metaphor of the abstract for the image of the teaching strategies of junior middle school students.The combination use of the creation experiment situation of students' autonomous inquiry strategy is better than others.