En el trabajo: Contratistas: Perímetro y área (On the Job: Contractors: Perimeter and Area)

Landsat satellites orbit the Earth to get images. Learn how these images are made using heat. Then, find out how these cutting-edge satellites are helping save the planet! Created in collaboration with the Smithsonian Institution, this Spanish book ignites a curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides English language learners through every step of the engineering design process. Inspire students to pursue a STEAM career with career advice from a real person working in a STEAM field. Discover engineering innovations that solve...

The Grand Canyon is a "grand" place to learn data analysis! Through an examination of its rocks and fossils, students will learn data analysis while reading about a fun-filled trip to Grand Canyon National Park. This Spanish book uses real-world examples to teach math concepts, and incorporates nonfiction reading to increase vocabulary and comprehension skills. The challenging practice problems, graphs, and sidebars provide many opportunities for students to practice their developing math skills, and apply what they've learned to their daily lives. Essential text features like a glossary,...

Simple text and color photographs show what life is like on a ranch, covering cattle, corrals, roundups, and other topics.

LOS RELATOS DEL ABUELO "LAS RAZAS" Durante las vacaciones de verano, mientras disfrutan de sus paseos por el campo, un día un Pedrito al contemplar las lejanas montañas exclama ¡Abuelo, qué grande es el mundo! El abuelo, a través de una serie de relatos hace que Pedrito y a sus amigos conozcan, amen y respeten a las diferencias que en RAZAS, CULTURAS y RELIGIONES, el mundo les ofrece. Para ello les hace viajar virtualmente por LOS CINCO CONTINENTES.

Con motivo del aniversario de la llegada del hombre a la luna, Lumen visita el mundo lunático. Al término de la Segunda Guerra Mundial (1945) las dos potencias más poderosas de la época, la URSS y los EEUU, iniciaron lo que se denominó la Guerra Fría. Una de las disputas más espectaculares fue la carrera del espacio. Tanto los comunistas como los capitalistas querían conquistar el espacio exterior, o que lo pareciese. La URSS iba por delante con sus proyectos Sputnik, pero los EEUU consiguieron ganar la partida más importante: que un hombre pisase la Luna. El 20 de julio del 1969, a...

As they say, necessity is the mother of invention, and this book introduces readers to 14 women who invented very useful, helpful items. They include Chicago native Margaret Wilcox who invented the car heater, Indiana native Marion O'Brien Donovan who invented disposable diapers, Pennsylvania native Stephanie Kwolek who invented Kevlar, and Austria-born actress Hedy Lamar whose secret communications systems led to the creation of WiFi, Bluetooth, and GPS.