Sevilla

Young Martin's grandfather was once a world explorer, and now he has given Martin a key that opens the door to his secret storeroom. In this book, a sandstorm greets Martin as he visits Egypt's great Sphinx. He goes on to explore the pyramids, where he learns about ancient Egypt's pharaohs, and then he travels to the Valley of Kings, to Luxor, once the capital of ancient Egypt, and to Karnak, the city of ancient temples.

Recess is a time to go outside, have fun, and play. Spend some time problem solving to make sure everyone has fun at recess! This Spanish math book combines math and reading skills and uses real-life examples of problem solving to teach subject-area content. The dynamic images, detailed sidebars, practice problems, and math diagrams make learning problem solving easy and fun. Text features include a table of contents, a glossary, an index, and captions to build vocabulary and increase understanding of math and reading concepts. An in-depth problem-solving section provides additional learning...

El Mal asola al ser humano desde que Pandora, la muñeca autómata fabricada por los dioses y diosas del Olimpo, abrió el recipiente que llevaba cuando fue remitida a los hombres de parte de Zeus para castigarles por la insolencia de Prometeo, que decidió robar el fuego para dárselo a los hombres. Como el genio de la lámpara de Aladino, el Mal debió de exclamar: «¡al fin libre!» Y a partir de ese momento emprendió su trabajo por todos los rincones de la tierra, irradiando locura, guerras, enfermedades, peste, crímenes, perversiones... a gran escala, pero también a la medida del...

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.

In 1846, travelers heading for California became trapped high in the mountains of the Sierra Nevada. Snowdrifts surrounded their shelters, and food supplies dwindled. How they stayed alive remains one of the most gruesome stories in US history. However, some facts that have come to light recently through archaeological digs will surprise even those who think they know the story. This gripping book, including maps and images of the era, tells the true account of the doomed Donner party.