El Cid Campeador

This New York Times bestseller, now available in Spanish, recounts the true story from Wilson Kimeli Naiyomah of the touching gift bestowed on the United States by a tribe of Maasai Warriors in the wake of the September 11 attacks. In June of 2002, a mere nine months since the September 11 attacks, a very unusual ceremony begins in a far-flung village in western Kenya. An American diplomat is surrounded by hundreds of Maasai people. A gift is about to be bestowed upon the American men, women, and children, and he is there to accept it. The gift is as unexpected as it is extraordinary. Hearts...

Una aut�ntica aventura art�stica en la que habr� que encontrar 30 retratos, escondidos en las distintas exposiciones y enmarcarlos con las pegatinas que aparecen en las p�ginas finales. Y por si esto fuera poco, habr� que buscar tambi�n a Wally, a Woof, a Wenda, al mago Barbablanca y a Odlaw, sin olvidarnos de los pasatiempos. Todo ello convierte este libro en el t�tulo m�s divertido de la serie Wally. ENGLISH DESCRIPTION Ever the globe-trotter, Waldo is eager to show you his pictures. But not so fast, you have to find them first! Enter Odlaw's Picture Gallery and admire...

Mathematics constitutes ideal material for exercising the art of learning and thinking. For this it is necessary that the classroom has a stimulating atmosphere which requires determined attitudes and beliefs. The book combines theory and practice and responds to questions such as these: to think in the mathematics class? on what does the knowledge of solving problems really consist of? what are the beliefs and which are the most common ones among the students? how to diagnose, evaluate and, in some cases to modify, the systems of beliefs of the pupil?).

When a bird flies by a window or a car zooms by on the highway, we often wonder how fast the two objects traveled. This book explains the concept of speed to readers while showing them accessible ways to measure it for themselves. Learning the amount of distance traveled, and how quickly that distance was covered, is a great way to implement a variety of STEM topics while practicing this essential mathematical skill.