La era del Jazz y la Gran Depresión (The Jazz Age and the Great Depression)

When the Japanese attacked Pearl Harbor in 1941, it prompted the United States to enter World War II on multiple fronts. From Africa to Europe, the Pacific to the home front, explore the American experience of World War II through the first-hand documents of the war.

Esta cuarta edición expone los fundamentos de las señales y sistemas discretos en el tiempo y procesamiento digital de señales. Este texto es adecuado para estudiantes de Ingeniería eléctrica, ingeniería informática y Ciencia de la computación.

"Este libro de fotos-ilustrado para lectores principiantes describe las clases de tiempo asociado con la primavera y analiza câomo la gente disfruta el clima cambiante." -- Ofrecido por editor.

Learn how scientists channel energy from the sun to power awesome innovations! 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.

Learn how engineers are racing to save the city of Venice from sinking and flooding. This Spanish STEAM reader features a hands-on STEAM challenge and uses real-world examples to teach problem solving.