La compra de Luisiana (The Louisiana Purchase)

Swamps are one kind of wetland biome. Like other wetland biomes, a swamp’s water must be clean in order for the wildlife in it to thrive. Readers learn the main features of both freshwater and saltwater swamps, as well as where some of the biggest swamps are on Earth. Science curriculum topics such as food chains and conservation make the main content a great complement to classroom learning. Full-color photographs and inset maps aid readers in identifying this interesting biome in the world around them.

Una obra sobre todas las orientaciones sexuales para todas las personas, sin importar su género o sexualidad. • James Dawson ha recibido el premio Queen of Teen 2014. • Este libro es gay es una obra divertida y honesta que llena un hueco en la no ficción homosexual. A veces, a los chicos les gustan otros chicos. A veces, a las chicas les gustan otras chicas. A veces, a las chicas les gustan los chicos y las chicas. A veces, a los chicos les gustan las chicas y los chicos. A veces, a las personas no les gustan ni chicos ni chicas. A veces, un chico querría ser una chica. A veces, una...

How do you truly engage students in learning history? When students make personal connections to the subject, they’re much more motivated to learn. This Spanish book provides firsthand accounts of history that give personal insights into historical events. This primary source book explores California’s unique geography: the coastal region, the Central Valley, the mountain region, and the desert region. With a visually appealing layout, this book features captivating text, fun facts, sidebars, and time lines that help students grasp the essential concepts they need to know at their grade...

For those who enjoy unconventional solutions, the author offers a wide range of all-time paradoxes that defy your deductive and calculation skills with impossible logical truths, and helps you to learn how to overcome the traps of false truths.

Acuciosa biografía de Jules Verne, el autor de los Viajes Extraordinarios, enriquecida con textos e información novedosa. Constituye un mágico paseo por los sinuosos y complejos acontecimientos vitales que propiciaron la creación de su obra.