Everyone has big feelings. It can be easy for adults to forget that learning how to manage those big feelings is a skill that we work on throughout our lives, and that for young children, big feelings can just be overwhelming. For children, the first step in managing emotions is learning how to identify them. Simply naming a big feeling can help them begin to understand it, and later regulate it.
Here is a video and a printable to help children learn about naming and expressing their feelings.