Here is another guided mindfulness exercise for children from my InnerKids class.
Mindful awareness exercises help children develop concentration and self-awareness. In this exercise, children are guided through a process of paying attention to their breathing. There are two versions of the guided exercise – the first is the full exercise and is intended for children who have had some practice, and the second is a slightly modified version for beginners. They are both designed for children ages 6-10.