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

¿Por qué? Es una colección de libros cuyo objetivo es el de resolver cuestiones "espinosas" que los niños plantean a sus padres. Este libro trata el tema de la interculturalidad.

The world's myths are filled with characters, creatures, and stories that have fascinated people for thousands of years. This series mixes dramatic retellings and non-fiction information to give a full picture of a culture's myths. This book explores the gods, goddesses, heroes, villains, tricksters, and quests that make Roman myths and legends so compelling. Fully translated Spanish text.

Say hello to heroes! This book introduces preschoolers to 50 men and women of color who have changed the world! Desde Toussaint L'Overture, el líder de la Revolución haitiana, hasta la jueza Sonia Sotomayor, la primera puertorriqueña jueza de la Corte Suprema de Estados Unidos, estos héroes y heroínas persistieron contra la adversidad y las dificultades para lograr un cambio positivo.From Toussaint L'Ouverture, the leader of the Haitian Revolution, to Justice Sonia Sotomayor, the first Supreme Court Justice from Puerto Rico, these heroes have persisted through adversity and hardships to...

Take a trip through the different forests of the world to discover where forests are located and what types of animals are native to forests. This book features colorful pictures, a detailed map of forests on earth, and vocabulary related to forests.