4 years & up. Take a mindfulness moment with these engaging Body Poetry: Yoga Poses with Three Levels of Difficulty Activity Cards. Children will enjoy stretching, strutting, waddling, prancing, and strolling around! Use this set of 16 cards to lead children in safe, fun, and healthy exercises. These activities promote gross motor skills, flexibility, and balance. Cards are divided into three categories: easy, intermediate, and challenging. Activity card(s) included.