When we are experiencing a strong emotion, it can be helpful to name it to tame it, or to control it. When we understand what we are feeling, it can help us to better cope and deal with it. So naming your child’s anger or frustration or hurt can we helpful to show them you understand what is going on for them.
For example, saying “You are really angry right now because you want to stay up later but can’t” or “You are frustrated because you cannot have more sweets” validates what they are feeling, while also teaches them to understand their emotions. This can better help then to resolve it.
For example “When I am angry I go for a run, lets run up and down the sitting room”, or “Can you draw me a picture of what you think frustration would look like as a cartoon character?”.