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[课题]:电磁感应 [教学目的]:1.了解电磁感应现象,知道产生电磁感应现象的条件。 2.培养学生的观察能力、动手能力、分析和解决问题的能力。 (评注:教学的目的要求应从传授知识和培养能力两个方面确定) [教学用具]:灵敏电流计、电键、方框线圈、蹄形磁铁、导线及指导学生学习用的自学提纲。 [课型]:一般概念新授课,启发式综合教学(实验讨沧为主)。 [正课]: [一、设疑引学]: 前面我们学习了电流的磁场,知道电流的周围总是存在着磁场。电流和磁场彼此是不可分割的。如果象通常所说的那样,是电流产生了磁场。那么大家是否想过存在不存
[Question]: Electromagnetic induction [Teaching purposes]: 1. Understand the phenomenon of electromagnetic induction and know the conditions for electromagnetic induction. 2. Develop students’ observation ability, hands-on ability, ability to analyze and solve problems. (Commentary: The purpose of the teaching should be determined from two aspects: imparting knowledge and cultivating ability.) [Usage equipment]: sensitive galvanometer, key, box coil, hoof magnet, wire and self-study guide for students to learn. [Course type]: General teaching of new concepts, heuristic integrated teaching (experimental discussion). [Course]: [First, set up a false introduction]: In front of us, we learned the magnetic field of electric current, and we know that there is always a magnetic field around the electric current. Current and magnetic fields are inseparable from each other. If, as is commonly known, it is the current that produces the magnetic field. So do you think that there is no existence?