Infiltrado

Take a tour of the world's most fascinating landmarks! The Gateway Arch, Big Ben, the Pyramids of Giza, and the Sydney Opera House are just a few of the landmarks that students will learn about in this high-interest book. 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, engaging sidebars, practice problems, and math diagrams make learning arithmetic concepts relevant and fun. Text features include a table of contents, glossary, and index to increase understanding of math and...

La Semana Trágica, las huelgas, las luchas y la necesidad del sufragio femenino, las políticas de la infancia en una trama social en gestación, las prisiones, los trasfondos multicolor del yrigoyenismo, la epidemia de gripe, los recovecos del arte: todo pasa por Katherine Sophie Dreier, singular y generosa mujer de vanguardia, a través de una lente estadounidense convertida en audaz caleidoscopio, lo que hace de este libro un relato fascinante del viaje que esta singular mujer emprendiera por Argentina entre 1918 y 1919.

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...

Describes How Animals Camouflage And Disguise Themselves In Order To Survive, Hunt, And Mimic Other Animals.