Teachers should show football-style red and yellow cards to unruly children to help curb disruptive behaviour, a group of academics has suggested.
Simon Brownhill with red and yellow cards and "behaviour binoculars"
The University of Derby lecturers also advise playing classical music in the classroom to calm young children.
But senior lecturer Simon Brownhill said the methods would not provide a "quick fix" for bad behaviour.
"Teachers will need to use strategies consistently and regularly for them to have maximum impact," he explained.
The ideas are listed in a new book researched and written by education academics Simon Brownhill and Fiona Shelton, and advanced skills teacher Clare Gratton.
It also discusses body posture, dress, tone of voice and warning systems to help teachers manage children aged between three and seven.
Mr Brownhill said: "Issuing yellow and red cards can help children who identify with sport to learn how to behave."
When he was a school teacher, he used toilet rolls as "behaviour binoculars".
"The results are amazing as children sit up and behave as you tell them you are going to use the binoculars to scan the room for good behaviour."
Ms Gratton added: "The book gives valuable support to teachers but does not provide every answer.
"Clearly every behavioural issue will require different strategies depending on the child, their needs, the context in which the behaviour occurred and the time of day."