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一、预习自学提升1.回顾旧知识教师在教授新知识之前,需要充分了解和掌握学生接受新知识的能力和水平,确定学生是否已经具备了学习和掌握新知识的技能,从而将新知识和旧知识有机地结合起来。举个例子,老师在教“电功率”这部分知识时,可以设计一个对比试验,也就是将一个灯泡连接到电路中,同时将电饭煲连接到电路中,并且让学生集中精神观察电能表中的转盘,看看哪个会转得比较慢,哪个又转得比较快,通过这种方式,让学生对电功率和快慢进行思考,从
A preview of self-improvement 1. Review of old knowledge Before teachers teach new knowledge, teachers need to fully understand and grasp the ability and level of students to accept new knowledge to determine whether students already have the skills to learn and master new knowledge, so that new knowledge and Old knowledge organically combined. For example, when a teacher teaches “electrical power,” a piece of knowledge can design a test that connects a light bulb to the circuit, connects the cooker to the circuit, and lets the student focus on the watt-hour meter Turntable to see which will turn slower, which turn faster, in this way, so that students think about the power and speed, from