Juegos mentales

Algorithms might sound like a complicated tech term, but don't be intimidated, people actually use them every day. Using accessible language and full-color photographs, this book simplifies algorithms in an easy-to-understand way. Readers will be amazed to learn that an algorithm is just a set of steps for computers to follow to get things done. STEM topics from the Next Generation Science Standards are emphasized throughout the text. Sidebars featuring key terms help readers grow their tech vocabulary, and fact boxes provide additional opportunities to learn.

Daniel Hernández ayudó a salvar la vida de la congresista Gabrielle Giffords, y la experiencia de su vida es fuente de verdadera inspiración en estas sentidas memorias en español. “Yo no me considero un héroe”, dice Daniel Hernández. “Hice lo que cualquier otra persona debió haber hecho. Héroes son aquellos que dedican toda su vida a ayudar a otros”. Cuando Daniel Hernández tenía veinte años trabajaba como pasante con la congresista Gabrielle Giffords. El 8 de enero de 2011, durante un evento titulado “El congreso en tu esquina”, alguien le disparó a Giffords. La...

Get a close-up look at animals in the zoo, from appearance to behavior to babies. This series uses vivid photos to compare life in the wild and life in captivity in terms of habitat, activity, and diet.

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.