Here is a great breathing exercise for any age. We should all consider deep breathing everyday because it is a simple and free coping mechanism that can help reduce stress, anxiety, and improve a range of emotional issues! You can work it into a daily routine or think of a situation that occurs a lot (trying to get out the door, bedtime routine, etc.) that is particularly stressful for you or your child. If you can carve out five minutes or less, you can try this exercise beforehand and see if it helps cultivate calmness.
OKPTA Cultivate 