Research On Teaching Strategies Of Using Physical Experiments To Transfer Junior Middle School Students' Preconception

Most students, even before they receive any formal education of physic in the class, have already developed their own notions and opinions about natural phenomenon, most of which, however, are shallow and nonessential. And that's what we call pre-concept. Different kinds of pre-concepts cast different influences on students' acquisition of different physical concepts. Some may boost the acquisition process, while some may just do the opposite. “Teachers as the leading factor, while students as the main body” is a basic teaching mode of junior middle school physics course under the new curriculum standards. It attaches much attention on the diversification of teaching methods and promotes the teaching idea of “physics comes from life and goes back to society”. In the traditional way of instillation teaching, teachers often overlook the subjective initiative of the students and don't take pre-concepts into consideration. And this makes students unable to truly understand physical concepts. Thus, a deep understanding of the existence of those pre-concepts, an due attention to students' academic abilities and a specially designed teaching method shall work together to play an important role in improving the teaching quality.The paper bases on educational psychology, and in accordance with the teaching contents and requirements of mechanics in middle school physics, through the application of literature research method, questionnaire survey and the like, the author relates and analyzes the theoretical foundation of the transformation from preconception to scientific concept, and manages to find the transformation tactics of physics learning by the usage of correct attributes and wrong attributes of preconception, and also reveals the preconception in students' minds as well as the source of it, and then lists some problems in physics learning. The author conducts the research from six perspectives of preconception which are easier to generate errors, and relevant experiments are designed to change students' preconception. The author designs specific teaching procedure on the project of the research on the conditions of objects' float and sink.