El hipopótamo

Get a close-up look at animals in the zoo, from appearance to behavior to babies. This series uses vivid photos to compare life in the wild and life in captivity in terms of habitat, activity, and diet.

This book introduces you to giraffes, including their size, diet and everyday behavior, which highlights differences between those in the wild and those living in a zoo habitat.

Can you find these in the book? robin, tulip. What is your favorite season? Books in the Seasons series explore seasonal changes from a child's point of view. Fin out about the sights, sounds, tastes, and smells that each season brings.

These titles look at many of the animals typically found in zoos, covering such topics as appearance, behavior, and babies. Vivid photographs compare the habitat and diet of each animal, both in the wild and the zoo.

Now available in a Spanish language edition, this charming board book was originally published in English by Barron's in Spring 2003, titled My Own Human Body. It explains the human body in a series of words and pictures that are simplified for preschool boys and girls. The heavy board pages are die-cut in the shape of a smiling little boy. When kids lift the front cover, they remove his shirt and see the location of his heart. The text gives a simple explanation of how the heart pumps blood through the entire body. As kids turn successive pages, they observe the human body's interior and...

La cultura medieval islámica ha dado figuras espléndidas. Omar Jayyam, poeta y filósofo, algebrista y astrónomo, es sin duda la más fascinante de todas. Su pensamiento fue heterodoxo, su saber inmenso, su obra variadísima. De lo que nos ha llegado de su poesía no siempre es fácil distinguir lo auténtico de lo apócrifo, y de lo que sabemos de su vida, la historia de la leyenda. Su más importante aportación algebraica, la resolución sistemática de las ecuaciones cúbicas cortando cónicas, se procurará poner al alcance de un lector moderno sin alterar las ideas de fondo.

Computer science is all around us, at school, at home, and in the community. This book gives readers the essential tools they need to understand the computer science concept of reusing resources and knowledge. Brilliant color photographs and accessible text will engage readers and allow them to connect deeply with the concept. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience and show how reusing resources and knowledge can be helpful in the real world. In this book, readers learn about the Bill of Rights and how parts of it...

�Qu� pasar�a si te encontraras a un beb� b�ho en tu patio? �Sabr�as qu� hacer? �D�nde ir�as a pedir ayuda? �nete junto con Madie y Max mientras aprenden una valiosa lecci�n sobre un peque�o b�ho perdido en El rescate del beb� b�ho. El par de hermanos s�lo quer�an jugar beisbol. �Nunca esperaron encontrarse cara a cara con un animal salvaje! Esta historia nos recuerda a todos que vivimos en un mundo rodeados de animales salvajes, y esos animales se merecen nuestro respeto y tenemos que ser cautelosos.