I came across this very cute guide to teach children about how to interpret dog behavior.  It also demonstrates how the child should behave around dogs!  I am rather partial to the adorable little Boston Terrier featured in this training guide.  If you are interested in learning more about dog behavior and/or training, check out their website, The Behaviour Company, to find all kinds of tips and suggestions.
Click on the photo to go to their webpage for more resources on dog training!