Cruzar un continente

The need for speed is the motivating factor in this engaging, Spanish book. Readers learn the history of travel from the very slow to the supersonic and beyond, including everything in between. They learn and discover the factors that influence motion for all types of vehicles: land, air, and water alike. They also learn different ways to measure speed and read about energy uses for different vehicles. With greater speed comes greater risk. Readers learn how engineers are always seeking new and better ways to keep people safe as they travel faster and go farther.

How do you truly engage students in learning history? When students make personal connections to the subject, they’re much more motivated to learn. This Spanish book provides firsthand accounts of history that give personal insights into historical events. This primary source book explores California’s unique geography: the coastal region, the Central Valley, the mountain region, and the desert region. With a visually appealing layout, this book features captivating text, fun facts, sidebars, and time lines that help students grasp the essential concepts they need to know at their grade...

Learn how a designer's sketch becomes the fashion we wear and how a designer uses math and geometry to make their designs successful in this fashion-filled book! Including information about the fashion industry, clothing fabrics, patterns, and textures, readers learn all about the different aspects of the fashion industry. With a glossary, index, vivid images, informational text, and interesting facts, this Spanish-translated nonfiction book with engage students from beginning to end.

Discover The Life Of The Inventor Alexander Graham Bell, Who Among Other Things, Invented The Telephone.

In 1991, preparation for the construction of a new federal office building led to a startling discovery: a skeleton. Further excavation exposed the bones of 420 men, women, and children. This area of New York had been a burial ground set aside for both free and enslaved Africans during the 1600s and 1700s. It’s thought to be one of the most important archaeological discoveries of the 20th century. This noteworthy book—which includes sidebars, fact boxes, a timeline, and maps—fills in the gaps of history books, exposing much about what life was like in colonial New York for Africans.

¡José! Nacido para bailar cuenta la historia de un niño que nació en un pequeño pueblo mexicano y que se convirtió en uno de los más grandes bailarines de todos los tiempos: José Limón. José era un niño con una canción en su corazón y la danza en los pasos. Nacido en México en 1908, vino al mundo tirando más patadas que un cabestro y, al crecer, se apasionó por el dibujo, el piano y los sueños. Los sueños de José lo llevaban a lugares distantes. Soñaba con toreros y con el sonido de los bailadores de cancán que él había visto con su padre. La danza encendió una llama...

Quizá los trilobites no sean tan espectaculares como los grandes dinosaurios. Sin embargo, estos pequeños seres prehistóricos –los cuales vivieron durante el periodo Cámbrico, es decir hace 542 millones de años–, tienen mucho que decirnos sobre el pasado remoto de la Tierra y sobre los seres vivos en general. Su fascinante anatomía, por ejemplo, guarda curiosas similitudes con otros animales y con un sinfín de objetos de uso común hoy en día. Este ameno libro toma a los trilobites como tema para hablarnos de la biología pero también de ingeniería. Los autores se refieren lo...