The U.S. flag is a familiar sight to any American student. This book will give them the background to understand why it flies outside their schools and other buildings, as well as how the distinctive star and stripes came to be and other historical details. Historical photos trace the development of the flag's design, while graphic organizers break down information into memorable chunks. Did you know there have been more than 20 versions of the flag? Or that it can only be displayed all day at certain important places? These facts are only the start!.