A primary school is "so much calmer", say teachers, who have started training pupils in Year 5 and 6 to be mental health ambassadors.
St Michael's Church of England primary in Wolverhampton has begun teaching a programme to help children manage emotions, following investment from the West Midlands Violence Reduction Partnership.
A group of 20 pupils, which includes those with special educational needs, are being taught how to be "upstanders", so that they can look out for younger children, the partnership stated.
One of the upstanders, Apryl, aged nine, said: "I don't think nine years old is too young to be thinking about mental health, because everyone is unique, and it's been fun to learn about how people struggle with their lives."