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.

Por primera vez en español se presenta una amplia muestra de la poesía coreana contemporánea. Un cuerpo poético íntimamente vinculado a la naturaleza, cuyo predominio temático con la soledad, la meditación, la contemplación de los misterios de lo cotidiano y del mundo. Han Yung Un (1879-1944) es uno de los poetas más apreciados de la literatura moderna coreana. En él se funden el renovador del espíritu poético de una época y el apasionado independentista opuesto a la dominación japonesa.

These biographies introduce young readers to important figures in American history. Ideal for reports and correlated to the social studies curriculum, the series presents a straightforward account of each individual's life and times and describes how each person contributed to the shaping of our nation.

¡Conoce al iguanodon, un dinosaurio herbívoro que pesaba toneladas literalmente! Las imágenes coloridas ayudan a los lectores a aprender cómo era la vida para estos comedores de plantas de punta. Meet the iguanodon, an herbivore dinosaur who weighed tons—literally! Now in Spanish, carefully leveled text and colorful images help readers learn what life was like for these spiky-thumbed plant-eaters.

Spanish English bilingual children's book. Perfect for kids studying English or Spanish as their second language. Ron and his best friend Maya go through a journey to become heroes. They learn important superhero rules which help them complete their first mission. They work together and help Maya's brother, learning new things about themselves.