Identidad y ciudadanía

Para jóvenes lectores que además ejercen de espías, detectives, conspiradores y aventureros, este libro presenta todo tipo de sistemas, de lenguajes y de ingenios para crear y ocultar mensajes secretos. Desde las órdenes cifradas de Julio César, hasta el extraño mensaje en clave que escribió el hombre de la máscara de hierro, el código que utilizó Sherlock Holmes o la fabricación de tinta invisible, con ejercicios prácticos y un diploma acreditativo.

Why do continents matter? From economics to weather science—and everything in between—knowing the characteristics of the continents expands readers’ perspectives in every school subject. This fundamental information is a building block of many future lessons and an essential part of elementary education. This book presents a focused, clear, age-appropriate look at Earth’s continents that young readers are sure to find both informative and interesting. This volume is also packed with colorful maps that are labeled and explained to foster young readers’ comprehension of this important...

Pilar the foal is nervous about starting school, so her mother pampers her. Includes facts about horses.

Discusses the various features of Australia, including its climate, mountains, rivers, lakes, animals, vegetation, coral reefs, flightless birds, population, and cities, and history of the Aborigines.