一个具有良好品质的教学互动,常常借助简单的实验,形成师生互动的媒介,它往往是简单的、有趣的、产生疑问的、激发探究欲望的、获得交流快乐而又令人回味无穷的.下面就“楞次定律”课堂实践活动的实施作具体的描述及思考.1学前分析学生已经能够应用感应电流产生的条件判定感应? A teaching interaction with good quality often forms a medium of interaction between teachers and students with simple experiments. It is often simple, interesting, questionable, inspiring desire for exploration, and it is pleasant and memorable to communicate. The following on the “Lenz’s law” in the implementation of the practice of class activities for a specific description and thinking.1 Pre-school students have been able to apply the induced current conditions to determine induction?