La historia de los sistemas numéricos: Valor posicional (The History of Number Systems: Place Value)

This title covers basic information about thorny devils, one of Australia's mightiest little reptiles! Information in this title covers a thorny devil's habitat, diet, habits, and more. Aligned to Common Core Standards and correlated to state standards. Abdo Kids Jumbo is an imprint of Abdo Kids, a division of ABDO. Translated by native Spanish speakers--and immersion school educators.

A powerful and poetic play from the author of Death and the Maiden. A Man and a Woman in purgatory - a soul-less white room. Each is interrogated in turn by the other. Each is groping for forgiveness and contrition. But one of them has done something unforgiveable...

Con tres enormes problemas mentales, un hombre avanza en su vida sin saber las tragedias de las que él mismo se impresionará. No todos los caminos son felicidad y paz. En esta tragedia insólita, navegarás por los oscuros senderos de una mente enferma.

From art and architecture to politics, philosophy, and mathematics, "western civilization" owes a great deal to the achievements of ancient Greece, but what do we really know about this long-gone civilization? How did geography influence the politics of the Greek city-states? What's the difference between an agora and an acropolis? This book takes readers several thousand years into the past, when independent city-states ruled the Mediterranean Sea, to find the answers. Full-color photographs and maps, accompanied by accessible text, introduce readers to the many contributions the ancient...