Piedra de toque

Navigation instruments have changed over time. Lodestones, sunstones, and sextants helped early navigators find their way. Modern technology makes navigation more precise than it has ever been. But the roots of navigation still remain. Created in collaboration with the Smithsonian Institution, this Smithsonian Informational Text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step of the engineering design process and is perfect for makerspace activities. It ...

Oceans cover 70 percent of the Earth's surface, providing students with a variety of plant and animal life to learn about. An ocean biome includes the saltwater below the waves and everything on, above, and near the surface. Students will also learn about the beach, tides, cliffs, bays, coastlines, coral reefs, and tide pools in this Spanish-translated title.

Readers are given helpful information about the dangers of drugs and alcohol, including narcotics, hallucinogens, and prescription medications in this Spanish-translated nonfiction book. Through detailed images, diagrams, informational text, an index, a glossary of terms, and a list of websites that provide additional information, readers are given the tools and information they need to educate themselves about addiction, drug abuse, the health and social issues that drugs and alcohol can cause, and how to say no to peer pressure.

¿Cómo harías de tu vida algo fantástico? ¿Cómo escaparías de la monotonía del mundo real? ¿Cómo te alejarías de los aburridos seres humanos? Y cuando tu obsesión por vivir en un mundo fantástico, tan diferente de aquel que todos los demás ven, se cumpla finalmente... ¿cómo distinguirás la realidad de tu propia fantasía? Sed bienvenidos a la mente de Kala, un lugar donde la peculiar interpretación de las situaciones que vive nos sumergirá en un mundo extraordinario, en el que realidad y ficción se mezclan y conviven a un tiempo sus amigos reales con presencias imaginarias...