教材分析本课围绕物体的导电性,设计了一个完整的探究活动。通过猜测与假设、实验验证、讨论交流等环节,启发学生自己得出物体分为导体和绝缘体两类这一结论。引导学生联系生活实际,理解导体和绝缘体在生活中的不同用途,理解电流是怎样在电器元件中通过的。学情分析学生已经初 Textbook Analysis This lesson revolves around the conductivity of objects to design a complete exploration activity. By guesses and assumptions, experimental verification, discussion and exchange of links to inspire students to draw their own objects into conductors and insulators are two types of conclusions. Guide students to relate to real life, to understand the different uses of conductors and insulators in life, and to understand how current flows through electrical components. Student analysis has been early