电磁铁在现代社会生活中的应用广泛且十分重要,古今中外,人们对电磁铁的研究都投入了极大的兴趣,网络上相关的内容也是十分丰富,本设计从解决生活中出现的问题入手,激发创造热情,让学生在体验创造发明乐趣的同时,渗透物理学研究方法,符合物理教学“从生活走向物理,从物理走向社会”的理念。此设计解决的问题:小朋友在利用磁性钓鱼竿时,将钓上的鱼放入筐中时,需用手摘下玩具鱼,大大减慢了钓鱼的速度,为提高钓玩具鱼的速度,请初中学生利用所学物理知 Electromagnets in the modern social life is widely used and very important, all over the world, people have great interest in the study of the electromagnet, the network is also very rich in relevant content, the design from the solution to problems in life start , Inspire the creation of enthusiasm, so that students experience the fun of creating inventions, infiltration of physical research methods, in line with the physics teaching “from life to physics, from physical to social ” concept. The design to solve the problem: When children use the magnetic fishing rod, the catch of fish into the basket, the need to hand off the toy fish, greatly slowed the fishing speed, in order to improve the speed of fishing fish, please Junior high school students use the knowledge of physics