Experimental Science Lessons of the Electricity using Model Electric Motors for Elementary School Children

Abstract

Elementary school teachers traditionary bring the flash lamps into the lessons of electricity for the lower grade children. The author experimentaly introduced the model electric motor in these lessons of the electricity as a black box, so that children would do more diverse activities and be able to understand more deeply the concepts of the electric circuit. The following hypotheses were formulated for these lessons; (1) Childrens ‘activities in the classroom would become more active and lively. (2) Children would become more conscious about the +, -poles of the battery. (3) Children would understand more deeply the basic concepts of the electric circuit. (4) Children would change thier images for electricity that is called the collision theory in which two kinds of electricity coming from two poles collide each other. After the lessons, there hypotheses were chequed by the records. collected during the lessons and the test papers for the evaluation. As the result, the hypotheses (1), (2), (3) were completely supported but (4) was not supported. In the lessons, children were allowed to engage in the messing about with the model motor delivered to each child, and went on to construct a motor fun and a propeller ship using a miniature propeller They were much interested in the motor, consequently thier activities were very vivid and active unexpectedly.