Por qué covid asusta al mundo

You've probably heard of lions and tigers. Perhaps you've seen them at the zoo. But have you heard of the clouded leopard? This shy member of the cat family is an endangered species. Their shyness makes studying them a challenge for zookeepers and scientists. Find out why they are so special, and why they need our help. Created in collaboration with the Smithsonian Institution, this Smithsonian Informational Text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through...

Over the years, people have looked for ways to improve our imperfect sight. This has led us to the world of optics, which is the study of light and how it travels. What are some of these innovations that have changed how we see the world, and how do they work? Find the answers to these questions with this Smithsonian Informational Text! Created in collaboration with the Smithsonian Institution, this text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step...

¡Explora el maravilloso mundo de la química! Aprende junto con las químicas inspiradoras cuyas innovaciones cambiaron el mundo. Descubre el poder de la curiosidad y la resiliencia a través de una conversación entre una protagonista joven y valiente que hace preguntas sobre el mundo a su alrededor, y un narrador científicamente astuto cuyas respuestas son exactas y comprensibles para las mentes jóvenes. Las mujeres en la química es el lugar perfecto para que los niños empiecen sus propios viajes de descubrimientos y maravillas.

Computer science is all around us, at school, at home, and in the community. Anyone can learn computer science, even at the elementary school level. This book delves into essential computer science concepts using age-appropriate language and colorful images. The computer science topic is paired with an age-appropriate curricular topic to deepen readers’ learning experience. The instructional guide on the inside front and back covers provides: Vocabulary, Background knowledge, Text-dependent questions, Whole class activities, and Independent activities.