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In This Early Reader Grandpa Comes To School And The Class Teaches Him What They Are Learning About Green Lunches, Recycling, And Conserving Electricity.

Inka rulers led a huge empire with grand palaces. They had incredible riches. Artists made statues out of gold and silver. The Inka also made masterpieces out of grass. Their grass bridges crossed deep canyons. These engineering marvels let soldiers and messengers travel around the empire. 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...

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.

La conjugación alcohol y adolescencia es una preocupación constante que aparece cíclicamente en el interés social. En algunas ocasiones se visibiliza como un problema de orden público, en otros se acentúa como un problema educativo, en otras ocasiones coge fuerza la visión de salud pública. Todas son ciertas, pero parciales e incompletas si no se aúnan todas las visiones en una interpretación más omnicomprensiva del fenómeno del consumo de alcohol juvenil. Ello es especialmente necesario cuando se trata de buscar soluciones o programas preventivos de impacto en la población...

Los tiburones son criaturas increíbles que nosotros los humanos recién comenzamos a comprender. Este libro, con fotografías de cientos de tiburones y la información más reciente, animará a todos a hacer algo por estos animales en peligro de extinción.