一、问题在《原电池》的教学中 ,常规例析提及 :干电池是原电池的应用。但课后 ,学生又问道 :既然干电池是原电池的应用 ,为什么干电池能使小电灯泡发光 ,而原电池则不能 ?干电池和原电池有没有本质差别 ?为解答学生的困惑 ,我和学生一道分析 ,并用实验探索方法进行一次干电池 First, the problem in the “primary battery” in the teaching, the conventional case analysis mentioned: dry battery is the original battery application. After class, the students also asked: Since the dry battery is the application of primary batteries, why dry batteries can make small light bulbs light, but the original battery can not? There is no essential difference between dry batteries and primary batteries? In order to answer the students’ puzzles, I and students together Analyze and conduct a dry cell with experimental exploration