Big emotions are normal for children to have, but they need to learn how to deal with them in a helpful way.  Create a quiet zone that they can go to proactively.  Teach them how to turn the volume down on their emotions.  Print off the tokens and use a 1.5 inch round punch to cut out the tokens,  laminate them and add a hook and loop or magnets.  There is a space under the dotted line to put a selection of tokens for the child to choose from to add to the empty circle when they go into their quiet spot.