In the moment
Try to engage with the child one-on-one asking the rest of the class to a quiet activity. It may help to stay near the child as they calm down, before re-engaging them in the classroom activity.
Name it to tame it
Dr Dan Siegal who's behind a lot of the latest 'brain information', says we have to “Name it to tame it” so in the moment, name their emotion – “I'm wondering if you're angry because….” or “I notice you're looking a bit angry and you might also be sad because...” Letting them know you're there for them and talking in statements (rather than questions) can help minimise any further outbursts.
Call in the small guns!
Think about who in the class may be able to provide some empathetic support – tamariki can be really good at this in their own low-key, kid way.
When there's some time
Teachers are incredibly important to tamariki, and when a student feels a good connection with you they may be more receptive to seeking help, when needed. Make some one-on-one time available, even if it's just asking them to help you with a task (e.g. putting up chairs). Ask them questions about themselves and be interested in what they tell you.
Too hot to handle?
If the angry behaviour is too big to manage and threatens the safety of others, employ your school procedure, and when things are calm, try some planning as outlined below.