books.google.com - Exciting, hands-on approach to understanding fundamental underpinnings of modern arithmetic, algebra, geometry and number systems, by examining their origins in early Egyptian, Babylonian and Greek sources. Students can do division like the ancient Egyptians, solve quadratic equations like the Babylonians,...http://books.google.com/books/about/The_Historical_Roots_of_Elementary_Mathe.html?id=7xArILpcndYC&q=Hint&utm_source=gb-gplus-shareThe Historical Roots of Elementary Mathematics