Cambridge Discovery Education Interactive Readers are the next generation of graded readers - captivating topics, high-impact video, and interactive exercises designed to motivate and engage.  How do we decide where a country ends and begins? Come examine the ideas of borders and territory, on Earth and beyond. Use the unique code inside...

Cambridge Discovery Education Interactive Readers are the next generation of graded readers - captivating topics, high-impact video, and interactive exercises designed to motivate and engage.  How do we decide where a country ends and begins? Come examine the ideas of borders and territory, on Earth and beyond. Use the unique code inside the book to access the online reader, complete with videos and interactive exercises. Word count: 2736. Lexile Reading Level: 780L