La fiebre del oro (The Gold Rush)

Take a trip to the British Museum as you explore its fascinating objects and geometric shapes! This famous London museum was built for exploration - and for learning geometry. Learn about its history and artifacts as you build your geometry skills. This Spanish math book seamlessly integrates the teaching of math and reading, and uses real-world examples to teach math concepts. Text features include images, a glossary, an index, captions, and a table of contents to build students' vocabulary and reading comprehension skills as they interact with the text. The rigorous practice problems,...

Rain, sunshine, warm fronts, and cold fronts. Have you ever listened to a weather report? Knowing the weather can help us plan ahead. But reporters aren’t the only ones who can track weather. You can, too! This nonfiction Spanish book explores the subject of meteorology in depth, and introduces students to important scientific concepts and vocabulary like anemometer, barometer, air pressure, warm front, cold front, rain gauge, probability, Celsius, Fahrenheit, and more. The colorful images, diagrams, sidebars, and text features will keep students connected to the text. Aligned to state and...

Students will develop their math skills while engaged in reading about the importance of honeybees. This nonfiction math book combines math and literacy skills, and uses real-life examples of problem solving to teach subject area content. The full-color images, intriguing sidebars, practice problems, and math diagrams make learning place value relevant and fun. Text features include a table of contents, glossary, and index to increase understanding of math and reading concepts. An in-depth problem-solving section provides additional learning and practice opportunities while challenging...

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...

"Lady Isabel Pelham y Gerard Faulkner, marqués de Grayson, son la pareja más escandalosa de todo Londres. Tienen en común una lujuria desmedida, un gran ingenio, una provocativa reputación en entredicho y, lo más importante, ninguna intención de enamorarse el uno del otro, algo con lo que tirarían por la borda su matrimonio de conveniencia. Por nada del mundo romperían esa farsa ... hasta que el destino aparta a Gerard del lado de Isabel. Cuatro años más tarde, el marqués de Grayson regresa a casa. Isabel se encuentra con que el pícaro joven se ha convertido en un hombre poderoso...

Las computadoras y el Internet cambiaron para siempre la forma en que comunicamos mensajes y otro tipo de información. También crearon nuevos desafíos para poder mantener esas comunicaciones privadas. Ahí es donde entra la criptología digital, el estudio de la comunicación digital secreta. Aprende sobre cómo trabajan los criptólogos profesionales para burlar a los piratas informáticos y ciberterroristas que intentan acceder a información privada. ¡Luego prueba tus habilidades con una actividad práctica de criptología digital! Computers and the internet forever changed how we...

Tommy Fuller and his family help a runaway slave family follow the stars in the Little Bear constellation to freedom.

Justo cuando más se preguntaba acerca de cómo sería su vida ahora que comenzara a usar brasier, una joven se percata de que todos los brasieres de su mamá han desaparecido. A partir de este extraño suceso, madre e hija se volverán cómplices entrañables en la lucha contra el causante de todo: el cáncer de mama.