Why have these slow, half-shelled creatures fascinated so many cultures around the world? Discover things you never knew about the history of the turtle.

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. These 96 leveled (A1-B2+), highly engaging titles feature Discovery Education™ videos that are fully integrated into the pedagogy of the readers. Choose from four formats: book plus access code for online content; online only; iOS app; and Android app. The online version of these readers comes complete with a learning management system - class creation, progress tracking, gradebook, and more - which frees teachers from the m

Water has powered industry for ages, helping to drive industrial growth. However, the awesome power of water can have some very negative consequences. Floods, tsunamis, and erosion all threaten our partnership with water.