Ingeniería asombrosa: Rascacielos notables: Área (Engineering Marvels: Stand-Out Skyscrapers: Area)

Sesenta autores, desde catedráticos de universidad hasta estudiantes de Secundaria y Bachillerato, nos presentan los cuarenta desafíos que la Real Sociedad Matemática Española propuso con motivo de su centenario.Son cuarenta estimulantes retos que avivan el ingenio. Enfrentándose a ellos, el lector se sentirá un auténtico investigador matemático.Pero no hay que asustarse. No es necesario saber muchas matemáticas. La herramienta esencial para resolver los desafíos es pensar ordenadamente.

California grew by leaps and bounds between the Gold Rush and 1900. People from different backgrounds emigrated to California from across America and around the world in search of a new life. This primary source reader focuses on immigration in California from the time of the Gold Rush to the end of the nineteenth century. Primary source documents allow students to see different points of view, and help students look at the world and current issues with a historical lens. This Interactiv-eBook builds literacy and social studies content knowledge through the use of intriguing primary sources...

Engage readers' interests and imagination. These award-winning biographies feature the breathtaking, illustrations for which the On My Own books are known. Written in story format, each book features pivotal episodes that reveal what kind of person the subject is (or was) and how he or she came to be famous.

Este práctico libro recoge muchas de esas preguntas que los pequeños de la casa (y a veces no tan pequeños) se pasan la vida haciendo a los mayores, y las contesta de un modo sencillo y muy divertido. Van acompañadas por unas simpáticas y originales ilust