自然第六册《磁铁的性质》这一课的主要内容是通过实验让学生了解磁铁的两个性质:具有指南北方向的性质;同极相斥,异极相吸的性质,并能利用这两个性质判断磁铁的两极。 课堂中通过前部分的教学,学生已了解了磁铁的两个性质,然后便进入利用两个性质判断磁极的阶段。在判断磁极的实验过程中,学 Natural Volume 6 The Nature of Magnets The main content of this lesson is to experimentally let students know two properties of magnets: the nature of a north guide, the nature of repulsion, the extreme attraction, and the ability to exploit this Two properties determine the poles of the magnet. Through the first part of the class teaching, students have learned two properties of the magnet, and then entered the stage of judging the poles using two properties. In determining the experimental process of the pole, learn