Un día en... el Imperio Romano (Un día en...)

The use of calendars dates back thousands of years. Why are we driven to record time, and what would happen if we did not? Who created the concept of calendars? Why do different cultures use different calendar systems? And why are calendars so important to us? It is about "time" we found out! Created in collaboration with the Smithsonian Institution, this Spanish-translated Smithsonian Informational Text builds reading skills while engaging students' curiosity about STEAM topics through real-world examples. Packed with factoids and informative sidebars, it features a hands-on STEAM challenge...

Esta es la historia de una familia griega que ve como cambia totalmente su vida con la llegada de la segunda guerra mundial.

¿Sabías que las lombrices viven en la tierra húmeda? Contraen y estiran el cuerpo para moverse. Aprende más datos fascinantes en Las lombrices, uno de los libros de Insectos fascinantes.

A beautifully illustrated picture book takes young readers on a journey of discovery to find out what it would be like to go to the moon, as they fly into outer space, walk on the Moon, and take a look at our world from a very, very long way away.