论文部分内容阅读
人教社实验教材《电功率》一章,在一些基本电学知识的基础上,利用同学们熟悉的生活素材,引入电能、电功率的概念以及电能表的使用.此外,教材还安排了形式多样、内容丰富的探究活动,如“探究电能表转盘转动快慢的原因”“测定小灯泡的功率”“电能转化成电热时的功率跟导体电阻的关系”“电功率和安全用电”等,对于这些实验不仅要领会实验思想,掌握实验方法,还要亲自动手去做.一、课程标准的要求及中考热点从新教材对知识要求的定位来看,本章教材降低了传统物理教学中
The chapter of “Electric Power”, an experimental teaching material of the People’s Education Agency, based on basic electrical knowledge, uses the materials of life that students are familiar with, introduces the concept of electric energy and electric power, and the use of electric energy meters. In addition, teaching materials are arranged in various forms and contents. Extensive exploration activities, such as “exploring the speed of the turntable of the watt-hour meter”“ measuring the power of the light bulb ”“power of the electric energy converted into heat and the resistance of the conductor ”“electric power and safety electricity ”Wait, for these experiments not only to grasp the experimental ideas, master the experimental methods, but also to do it yourself. First, the requirements of the curriculum standards and the examination hotspots from the new textbooks on the positioning of knowledge requirements, this chapter textbooks to reduce the traditional physics teaching in