These are several ways to attract pupils' attention, can be used by the teacher :
1. Change tone and volume .
2 . Use a bell or a whistle .
3 . Use of visual teaching aids .
4 . Start with a famous quote or an appropriate martyrdom .
5 . Ask a fundamental question as the beginning of the lesson .
6 . Countdown to start the lesson .
7 . Talk to a blackboard, door, wall or seat to draw attention.