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

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 este libro ilustrado para niños, una araña nos enseña 10 preposiciones mientras corre por el jardín y la casa hacia su telaraña. Las ranuras recortadas en las páginas invitan a los deditos a seguir a la araña en su viaje.

A team of second grade students has been tasked with designing the layout for Field Day. They'll need to make sense of measurement in order to make sure that everything goes smoothly! Will Field day be a fun day, or will it be a flop? This fiction 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, sidebars, and math...

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 ...