Anger and aggression is a common thing in children, These are new feeling for them as are happiness and sadness and we have to help them deal with it, Although we can't prevent anger, we can teach them how to assert this anger without harming others.
Try to understand Why is it happening, Why is it leading to extreme anger and temper tantrums which are beyond normal. Try to be understanding and see the reason behind such behavior and actions
Practicing relaxation techniques might help Immensely. For younger children, thinking of a favorite song or story can be calming. As your child gets older, you can teach other techniques, such as breathing, imagery, or meditation
You can work on communication skills of your child.Learn to express what you want appropriately. Stop and listen to what others are saying. Learn active listening skills and think before speaking and not jumping to conclusions.
Encourage Empathy Encourage your child to see things from another point of view. Even young children can understand when someone else feels sad or angry.
When Children get angry you can them down with hugs and praises. Physical contact can help defuse a challenging situation and calm them down . A well-timed hug can ward off jealousy or frustration feeling that leads to anger.
Exercise can be effective in burning off their anger or burning off steam. A regular exercise can calm them down and reduce frustretion and focus them on something productive.
Be a good role model Be aware of your own anger. Studies show that children are influenced by parental emotions and how parents behave and react.
Anger can be managed in children as you just have to guide them and make them understand reasoning. But is it extremely important to do so because mentally health of the children shapes their future.