Descubre los dinosaurios (Readaloud)

Let’s Make a Volcano Spanish Edition. What do you know about a volcano? When a mountain erupts, it explodes! Hot melted rock, called lava, comes out of its top and flows down the side of the mountain! People need to keep away from real volcanoes, but you can have fun making your own volcano!

I Like to Paint Spanish Edition. When you paint a picture, you can choose the best paint to use. What would you use to paint an elephant? What would you paint with pink or purple?

Cecilia es la única persona que visita a Silvio, un hombre que guarda celosamente el misterio de una vida de leyenda que nunca ha querido compartir con nadie. A través de una caja con fotografías, Silvio va dando a conocer a Cecilia su fascinante historia junto a Zachary West, un extravagante norteamericano cuya llegada a Ribanova cambió el destino de quienes trataron con él.

"Simple text and photographs describe common things that are blue, including blueberries, bluebirds, and blue jeans"--Provided by publisher.

Rabbit burrows play an important part in the life of a rabbit. A burrow provides a place to live, a place to raise baby rabbits, and a place to stay safe from predators. This volume, which was written to support elementary science curricula, examines the role a burrow plays in the survival of a warren, and how that in turn helps rabbits contribute to ecosystems around the world. The text’s age-appropriate, science-rich content focuses on rabbit behavior and encourages readers to draw connections between what they learn in science class and what they see outside. This text is complemented by ...

Esta cuarta edición expone los fundamentos de las señales y sistemas discretos en el tiempo y procesamiento digital de señales. Este texto es adecuado para estudiantes de Ingeniería eléctrica, ingeniería informática y Ciencia de la computación.