The Dog Pose (Adho Mukha Shvanasana) stretches the back, opens the chest, and builds upper body strength. 

For a fun activity to do with kids, do this posture together and then have them color the Dog Coloring Book Page below, which is adapted from The ABCs of Yoga for Kids Coloring Book. 

Illustration by Kathleen Rietz, Copyright 2009, All Rights Reserved