How Do You Measure Time?

"In Lion Cubs in the Wild, beginning readers will learn about baby lions as they grow up on the savanna in Africa. Follow along as lion cubs join the pride and learn from their moms. Vibrant, full-color photos and carefully leveled text will engage young readers as they are introduced to lion cubs' appearance, diet, behaviors, and habitat. A picture diagram labels a lion cub's body parts, while a picture glossary reinforces new vocabulary. Children can learn more about lion cubs online using our safe search engine that provides relevant, age-appropriate websites. Lion Cubs in the Wild also...

Learn about the many things humans can do to get warm when they are too cold. Created in collaboration with the Smithsonian Institution, this STEAM book will ignite a curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that is perfect for makerspaces and that guides students step-by-step through the engineering design process. Make STEAM career connections with career advice from actual Smithsonian employees working in STEAM fields. Perfect for English language learners, this Spanish book builds 1st grade students’ early literacy skills.

Antología compuesta por veintitrés relatos que, aunque con argumentos muy diferentes y únicos, comparten algunos denominadores comunes que les confieren la calidad de unidad. Entre ellos, el estar ambientados en dicha ciudad, en el periodo en que O'Henry la conoció, es decir, en la primera década del siglo XX, y el tener como protagonistas a personas comunes. Los equívocos, las circunstancias irónicas, las relaciones insólitas, los desenlaces sorprendentes de cuentos tan paradigmáticos como El regalo de los Reyes Magos y Los pasajeros en Arcadia, le convierten en el gran maestro del...

For ages, the idea of machines that think and act on their own has gripped scientists, thinkers, and the general public. This book explores the history of artificial intelligence (A.I.), and how science fiction is quickly becoming science fact. It examines the technologies involved in A.I. and its inevitable effects on work, life, health, and many other aspects of human society. Rooted in history and science, this book provides an inside look at a topic that captivates engineers, scientists, and dreamers, but also raises important ethical issues and challenges how we see ourselves and our...