Place it at the very start of a school scene, before any dialogue, then follow the lesson with the correct answer chime when a quiz answer is revealed and add a short laugh after a classroom joke to keep the sequence moving.
About this sound
This clip is a clear school bell ringing for about 21 seconds, with repeated chimes that fill the pause between lessons. It feels orderly and familiar, like a signal everyone recognises at once, and it carries a bright, slightly urgent energy that gets attention without sounding harsh. It is presented as the new Mebbis school bell, made for marking the start and end of class.