Babies (0 to 18 months)
Are angry when they have a discomfort caused by hunger, loud noises or tiredness.
They show it by crying.
Toddlers (18 to 36 months)
Can be easily angered because:
(a) they think they are the center of the world and can be frustrated when they cannot do or have what they want.
(b) it is difficult to share things.
(c) they have a strong notion of what belongs to them.
(d) they still don't know many words, can't speak well, and can be upset and angry because people don't understand them.
(e) have difficulty controlling their feelings.
They show anger with tantrums.
Preschoolers (3 to 5 years)
Are angry because they cannot yet control their emotions; are not yet good at using words when they are frustrated and angry; are learning how to share; have a hard time understanding that other people have different ideas.
They show anger with tantrums and aggression.
Children aged 6 to 8 years
Can be angry when they feel something is not fair; when they are rejected, punished, discriminated against or misunderstood.
They show anger by hurting and bullying others and using words to cause harm.