苏科版15章《电功电热》一轮中考复习教学,是电学的重难点,综合性强,每个教师选择的方法各有不同。到底怎样重新洗牌,让复习课的“冷饭”不再难吃?我在教学中不断尝试变化教学方法,这次我用一只小灯泡串起15章的三个实验,把讲台变成展示的舞台,让学生在复习课中重新活跃起来。本实验的重点是:1.认识滑动变阻器在本实验中的作用。2.会测量小灯泡的额定电功率。在以前的中考复习中,学生经常混淆滑动变阻器在不同实验 Suke version 15 “electric power” a review of teaching in the exam, is a heavy and difficult electrical, comprehensive, each teacher choose different methods. In the end how to re-shuffle, so that the review class “Cold rice ” is no longer unpalatable? I constantly trying to change teaching methods in teaching, this time I use a small light bulb strung 15 chapters of the three experiments, the podium Become a stage of presentation and get students re-energized during the review session. The main points of this experiment are: 1. To know the function of sliding rheostat in this experiment. 2. Will measure the rated light bulb power. In previous exam exams, students often confused sliding rheostats in different experiments