Inteligencia artificial: computadoras y máquinas inteligentes (Artificial Intelligence: Clever Computers and Smart Machines)

When winter hits, many people in colder climates spend most of their time indoors. But what do wild animals do? Some animals spend winters hibernating. Beginning readers will learn what hibernation is, why some animals hibernate and others don't, and how hibernating animals prepare for their long sleep. Full-color photographs grab readers' attention and allow them to draw connections to the narrative. Readers will love learning about this mysterious, restful time in some animals' lives.

Everyone has to be responsible for themselves. Let's explore ways to show responsibility! The Me Pregunto (I Wonder) series is perfect for young learners in prekindergarten through grade 2. These 16-page books give readers an accessible introduction to nonfiction reading. Color photographs and fun, factual examples will grab the attention of young readers and help strengthen reading comprehension skills.

Creo que todo el arte se debe involucrar con los tiempos que le ha tocado vivir. Tanto el pintor, como el escritor, así como la música, son pálpitos. Asi lo creo y así lo he vivido escribiento este libro, lo que me hace pensar que los poetas somos los tímidos más atrevidos, capaces de ponerle cascabeles al viento.

Surveys the life of Swiss/German immigrant John Sutter, on whose land gold was discovered in the mid-nineteenth century, spurring the California gold rush and westward expansion.