Las 7 maravillas del mundo antiguo

People all over the world love pets. Some pets are popular in certain areas of the world. Let’s find out about the popular pets around the world. Paired to the fiction title The Perfect Pet.

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...

En los últimos años, el inglés como lengua extranjera en la mayoría de los ámbitos de la vida cotidiana ha cobrado especial relevancia. De esta manera, el proceso de globalización impone el uso de este idioma para la negociación y gestión de operaciones de comercio internacional. A lo largo de este manual, se presentan una serie de pautas gramaticales y de expresión de la lengua inglesa en relación con las distintas actividades que se pueden desempeñar en los entornos laborales internacionales. Así, se fomentan una serie de habilidades lingüísticas, como la comprensión y...

The crustacean subphylum can be broken down into decapods, amphipods, copepods, and other types. This title offers readers from grades one through four comparisons between the needs and roles of different crustaceans, which will allow readers to understand the subphylum’s importance. Readers will recognize and expand their knowledge about familiar species like the lobster and the shrimp, while being introduced to the likes of the wood louse and zooplankton. Dynamic photography and methodically organized information will help readers examine the many sizes, types of limbs, and other features ...