I recommend a children's book I stumbled upon on Amazon called "Emotions at the Party." It's been such a great find for helping kids understand and manage their emotions. My 4 years old daughter is totally into it! Whenever she gets upset, I remind her of what the little girl in the book does—she takes three deep breaths—and it really helps her calm down.
The book is about a little girl who goes through all sorts of emotions, and each one is explained in a way that's super easy for kids to get. It's great because it gives me a chance to talk with here about each emotion and come up with examples of when she has felt the same way.
Plus, there are some fun activities at the end—little questions about the story and spots for kids to draw their own emotions. It's been a good way to teach her about emotional regulation.
