La naturaleza de la materia (The Nature of Matter)

In this biographical book, young readers will learn about the brave life of Harriet Tubman. Readers will discover how Tubman bravely escaped from her life as a slave to cross the Mason-Dixon line into freedom and how she helped hundreds of other slaves into freedom through the Underground Railroad with the help of abolitionists. The vivid images, stunning facts, and supportive text work in conjunction with the helpful glossary, index, and timeline of Tubman's life to give readers an engaging experience as they move from cover to cover. This book has been translated into Spanish.

Read Along or Enhanced eBook: Discover the world of mammals in this delightful nonfiction title! Readers will learn all about different mammals--from primates to marsupials, and rabbits to whales, even omnivores and herbivores. Featuring vivid photos and charts, clear text, and stimulating facts, this Spanish-translated book will have children eager to learn all they can about mammals!

Did you know that most animals in the world don't have backbones? Learn more about invertebrates in this engaging, Spanish-translated nonfiction book. Readers will learn all about mollusks, arthropods, arachnids, and crustaceans while being stimulated from cover to cover with its detailed images and charts, intriguing facts, and informative text.

De manera imprevista, Willyrex y sTaXx se ven obligados a revelar su secreto a George del Toro, quien, tras superar el desconcierto inicial al escuchar la historia de los diminutos youtubers, terminará por reconocerlos y se comprometerá a ayudarñps a desenmascarar al culpable de su situación. Si en sus viajes anteriores visitaron Estados Unidos y México, nuestros amigos se trasladan ahora a la lejana Australia, el lugar que conducen todas las pistas y donde, si sus sospechas son ciertas, Willy y sTaXx confían en encontrar la clave que solucionará todo este embrollo en el que están...

Desarrollo práctico de un programa para apoyo y refuerzo de Matemáticas en la ESO, en el que se ofrecen abundantes ejemplos y numerosos problemas y actividades (con su solucionario correspondiente) para que el alumnado las resuelva y se ejercite en los procedimientos propios del área.

¿Por qué tienes que guardar turno en los columpios?. Descubre cómo los buenos modales hacen del parque un lugar seguro y divertido para todos.

Stephen F. Austin grew up to become known as the Father of Texas. Readers can learn about his interesting and incredible life in this appealing biography that has been translated into Spanish and highlights both Austin's life and Texas history. Through vivid images and illustrations, supportive text, an accommodating glossary and index, and fascinating facts, readers will learn about Texas pioneers, the empresario system, Freemasons, and how Austin became such an important figure in Texas history.