The ringing of a school bell announces important times to a school's students and staff, such as marking the beginnings and ends of the school day, class periods, and breaks.

This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) This article is missing information about the history, origin and current usage of school bells around the world. (October 2020) This article may need to be rewritten to comply with Wikipedia's quality standards. (October 2020)

In some schools it may take the form of a physical bell, usually electrically operated. In other schools it may be a tone, siren, electronic bell sound, a series of chimes, or music played over a PA system.^[1] In East Asian nations such as China, North Korea and South Korea, the Westminster Chimes pattern is commonly played as the bell.^[2]

Schools for the hearing impaired use alternative signaling methods, for example sign language from the teacher and lights that illuminate when the public address/bell is sounding.^[3]

In October 2010, Mackie Academy in Stonehaven, Kincardineshire, Scotland, took the move to turn off their school bell system, following criticism that the school bells agitated pupils. According to the headteacher, the corridors became much quieter after the system was introduced. It was hoped that pupils would take more responsibility for ensuring they arrived on time to lessons.^[4] A number of other schools in the United Kingdom have made similar decisions and either partially or completely banning the school bell system.^[5]

In April 2010, Al-Shabab–an Islamic militant group that controls large parts of Somalia–ordered school bells banned as they sounded too similar to church bells. Hand claps were then used as an alternative way of signaling that a class was beginning or ending.^[6]

• PA System
• Last bell