Imagine living abroad, or even in another part of the country for a few months or longer, with your family in tow and using the world as your classroom. It might not be as far-fetched as you think. Three Boulder moms wrote a book on how to do it: "Wonder Year: A Guide to Long-Term Family Travel and Worldschooling." Chandra Thomas Whitfield spoke with co-author Julie Frieder, as well as a Denver family who took up the adventure.