How Do You Measure Time?

Provides an overview of the design, uses, weapons, and equipment of U.S. Navy submarines. Written in English and Spanish.

Además de la violencia ejercida sobre los opositores y la instauración de un modelo que ponía en el centro de la vida social al mercado, la dictadura de Pinochet se empeñó en forjar una juventud que permitiera proyectar el “nuevo orden” por medio de organizaciones civiles que dieran pie, a medida que estos jóvenes crecieran, a partidos políticos, organizaciones empresariales, think tanks y universidades. Fue la primera vez en la historia de Chile que se instituyeron “juventudes de Estado”, a la manera en que lo hicieran los gobiernos de Mussolini en Italia, Salazar en Portugal...

Police officers work hard to keep people safe, and they're well-known helpers in our communities. Readers explore the basic question of what police officers do at work. Along the way, they learn fun facts about laws, police cars, and even police dogs! This career is popular among young readers and a staple in curricula geared toward early learners. Detailed photographs of police officers on the job were chosen to align with the accessible text, allowing readers to strengthen their reading comprehension skills. Vocabulary development is also aided by a picture glossary, featuring clear...

"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...

Nature is not always kind. Natural disasters like earthquakes and storms can wipe out cities. Entire cultures and their histories are at risk of being lost. When disaster strikes, some people work to save cultural items. They preserve culture for the future! 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 every step of the engineering design process and is perfect for...