Juro lealtad a la bandera (I Pledge Allegiance to the Flag)

Inka rulers led a huge empire with grand palaces. They had incredible riches. Artists made statues out of gold and silver. The Inka also made masterpieces out of grass. Their grass bridges crossed deep canyons. These engineering marvels let soldiers and messengers travel around the empire. 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...

Entre los meses de septiembre y noviembre de 1927, la ciudad de Buenos Aires fue escenario de uno de los encuentros más apasionantes de la historia del ajedrez mundial. El cubano José Raúl Capablanca deferendía el título de campeón del orbe ante el retador, el jugador francés de origen ruso Alesxander Alekhine. La novela Perdido en Buenos Aires, recrea aquellos días porteños de Capablanca y narra , siempre desde la óptica del cubano, su estancia de dos meses y medio en la ciudad de La Plata.

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...

Con páginas desplegables y atractivos modelos realistas de las especies de dinosaurios más populares, este libro es una maravillosa introducción al mundo de estas fascinantes criaturas. With foldout pages and beautiful, realistic models of the most popular dinosaur species, this book is an incredible introduction to the world of these fascinating creatures.