teaching magnet bar magnet u-shaped magnet sn pole experimental magnet 教学磁铁 条型磁铁 U型磁铁 SN极实验磁铁

A teaching magnet is a teaching tool primarily used for educational experiments and demonstrations (such as science education courses in elementary schools and physics experiments in middle schools). It can also be used for student stationery, children's toys, etc. It helps stimulate students' interest in learning, focus their attention, encourage thinking and imagination. Children can also utilize the principle of like poles repelling and opposite poles attracting, which applies to the N; S poles of the magnet and the Earth’s magnetic field.