| Content: The students have already contacted with various physical phenomenon and questions before studying the physics in school, and formed massive intuition understanding about these phenomenon and questions, which are called preconception. Some of these preconceptions are consistent to scientific conception, some not too consistent, even quite a lot are completely wrong. However, because of having the deep practice foundation during its establishing, all of them are stubbornness and recurring, especially in the Mechanics and the Electromagnetic, about which students have the most preconception for having the most experiences. These preconceptions may have the pivotal function to the following scientific concept study. Now the preconception research has become the important issues in the international physical education research.Taking the constructivism theory as the direction, I researched on the electromagnetic concepts (mainly include the electric field, resistive electric circuits and magnetic field), and found many preconceptions during many students, and its pertinacity and universality was proved. Based on the present research, and the psychology process and condition of change that during the constructivism theory, I improved efficiency teaching strategies to change the inaccuracy conception, for instance, diagnostic strategy, conflict strategy, intuitionist strategy, experimental strategy, applied strategy, process strategy and the strategy of conception map. Then I applied the strategies to my teaching. In the end, I compared the two teaching effect. As a result, the strategies that I improved, which aimed at preconceptions, are super than the traditions. It is not only helpful to understand the concepts, but also helpful to improve the ability on solving problems. I think the most important is to help the students-self to taste purport of physics, then change the passivity to initiative, explode interest, and improve the teaching quality. |
