Atlas de los indios norteamericanos

La historia de la ciencia en la Edad Media es, hasta el siglo X, la del mantenimiento precario de los escasos saberes de la Antigüedad clásica que habían sobrevivido en occidente. A partir de entonces, la traducción del árabe de las obras de autores griegos fue la tarea fundamental. En el siglo XIII aparecen los primeros matemáticos medievales realmente creadores - Fibonacci, Jordano Nemorario y Nicolás de Oresme, entre otros. Al estudio de la obra de estos científicos y la de sus precursores está dedicado este libro.

Do you have what it takes to be an athlete? In this Spanish-translated nonfiction book, readers learn about the hard work, athletic training, and dedication that athletes from all sports and levels go through to be healthy and successful. Readers are familiarized with concepts like coordination, endurance, and athletic motivation. Along with stunning photos and charts and riveting facts, this nonfiction title includes an interview with a real-life Olympic athlete and an accessible glossary, index, and list of useful sources. This 6-Pack includes six copies of this title and a lesson plan.

Retells the adventures of the demi-god Hercules as he struggles to accomplish seemingly impossible tasks.

Lyndon B. Johnson was born in Texas in the early 1900s. This appealing biography has been translated into Spanish and highlights Johnson's life as he represented Texas in the United States Congress for 24 years and became the 36th President of the United States. Through engaging images, intriguing sidebars and facts, easy to read text, and a supportive glossary and index, readers will learn about interesting topics such as the Higher Education Act, Voting Rights Act, Minority Whip, and the Vietnam War. Readers will be eager to learn more about Johnson's fascinating life as they move from...