Children as young as 11 who demonstrate misogynistic behaviour will be taught the difference between pornography and real relationships, as part of a multimillion-pound investment to tackle misogyny in England’s schools, the Guardian understands.

On the eve of the government publishing its long-awaited strategy to halve violence against women and girls (VAWG) in a decade, David Lammy told the Guardian that the battle “begins with how we raise our boys”, adding that toxic masculinity and keeping girls and women safe were “bound together”.

As part of the government’s flagship strategy, which was initially expected in the spring, teachers will be able to send young people at risk of causing harm on behavioural courses, and will be trained to intervene if they witness disturbing or worrying behaviour.