Anger is an emotion that everyone feels sometimes. It's like feeling mad. We might get angry when someone says mean things to us, or when something bad happens. It can also happen when we're feeling frustrated because we can't do something we want.
When we're angry, we usually feel our face getting hot, and our hands and feet getting a little bit shaky. Our heart might beat faster, and we might have strong emotions like being scared or sad.
Sometimes when we get angry, it is okay to express your feelings in an appropriate way. That could mean talking to someone about what happened, or calming down in a quiet place. But it is important to remember not to do anything just because you're angry, like yell or hit someone.