Experimental Research On The Concept And Its Transformation In High School Mechanics

The physical concept is the cornerstone of physics, the premise to help students to establish a scientific knowledge systems and master the rules of physics. So, mastering physical concept is extremely important to students. But research shows that high school students have had a certain understanding of the objective world and formed its own view on certain phenomena before they learn phisical conceptstudy physics concepts caused by their early life experience and fommer studying. Their minds are not a "clean slate". This is what people have said "former concept". Former concept plays both positive role–right "former concept", and negative role–wrong "former concept" in high school science to students grasping the concept. The question that how to achieve change (how to change wrong "former concept"into scientific concept) and how to establish a new scientific concept become a ergent issue that teachers should ponder.I will make empirical study mainly on former concept and its convertion of mechanics of grade one in senior.First I will make introduction of the study of domestic and foreign scholars on former concept and its convertion.Secondly we discuss the theoretical Content. According to the theory introduced above I present three teaching mode to realise concepe change of mechanics: (1) based on the Driver and Oldham DO five-step model of teaching mechanics Five concepts into teaching mode; (2) Based on the Brown (Brown) and Clemente (Clement) Construction of the bridge strategy analog mechanical concepts into teaching model; (3) Inquiry mechanical concepts into teaching mode.Finally, We use experiments to prove conclusion. The first we checks the former concept of sliding friction, static friction, acceleration and inertia. Then using the three teaching mode which we mentioned earlier teach this content, therefor students change the concept. We adopt exploring teaching mode of sliding friction, and analogy teaching mode of static friction; We adopt analogy and exploring teaching mode to teach the concept of acceleration; We use five paces mechanical concept to teach inertia concept.The results show that: first, students have the same or similar to the former concept, in other words the former concept have a common understanding; Second, the concept of change is difficult, and complicated; Third, the concept of change to the teaching mode with the concept of matching characteristics; Fourth, changing the mechanical concepts into teaching mode,which have some positive effect to the concepts of the students.