Colores: Rojo

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...

Mars is perhaps the most thrilling planet these days. With rovers exploring its surface and manned missions in the works, people are wondering if Mars is our next home! In this highinterest book, readers will learn more about Earth's neighbor, including what its climate and surface are like, why it's called the Red Planet, and about the recent discovery of water on its surface. They'll learn all this while solving "Your Mission" math problems that complement and support the text. This motivating volume is an engaging way to explore key aspects of science and math curricula.

Read Along or Enhanced eBook: Martin Luther King, Jr. used peaceful protests to become one of the world's greatest African-American Civil Rights leaders. Readers will learn all about his interesting and inspiring life in this engaging biographical reader that features informational, Spanish-translated text, vibrant images and a timeline of King's life.

Los temas sobre la energía -producción, uso, impacto ambiental.- forman parte de nuestra vida cotidiana. Está presente en la prensa, en las cabeceras de los telediarios, en guiones cinematográficos o en la publicidad. Son contenidos vitales que no pueden esperar a la educación secundaria y su estudio debe abordarse desde los primeros niveles del sistema educativo. En este sentido este libro aporta ideas para la planificación y la puesta en práctica de actividades relacionadas con la energía, su uso, consumo y ahorro energético en la vida cotidiana. Se trata de propuestas y materiales ...