Las cadenas alimentarias en el desierto (Desert Food Chains)

Go for the goal with this text, which examines fascinating female sports heroes who’ve proved to the world that gender is no barrier to athletic success. Readers will delight in learning about the lives of Mia Hamm, Wilma Rudolph, and the Williams sisters, as well as other important women who’ve broken barriers in sports. Readers will be inspired to pursue a career in athletics after learning about how others have achieved success in spite of great obstacles. The biographical nature of the text supports social studies curricula, and fact boxes and a comprehensive timeline provide...

El tercer tomo de este ambicioso proyecto se introduce en el periodo más convulsionado (1930-1960) del siglo XX Si en el segundo tomo se constató que el sistema educativo fue exitoso en términos políticos y culturales, en este volumen vemos, más bien, cómo la educación se enfrentó, sobre todo, a las bondades y restricciones de la productividad económica y su impacto en el desarrollo social. Si en el periodo analizado los discursos enfatizaban las «reformas» llevadas a cabo por los gobiernos del Frente Popular, luego se comenzó a hablar de «crisis», yes que los deficientes...

What did people use to buy things before money was invented? Where is money made? Find out in this inviting book that informs readers about coins, paper money, the Federal Reserve, exchange rates, and checking accounts. Featuring a timeline of moneys history, detailed photos, stimulating facts, clear, informational text, and a glossary that will assist in improving vocabulary, this Spanish-translated nonfiction title will keep readers engaged from cover to cover.

A biography of the Chicago Cubs outfielder who in 1998, along with Mark McGuire, broke the home run record previously set by Roger Maris.

Computer science is all around us, at school, at home, and in the community. This book gives readers the essential tools they need to understand the computer science concept of algorithms and procedures. Brilliant color photographs and accessible text will engage readers and allow them to connect deeply with the concept. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience and show how algorithms and procedures work in the real world. In this book, readers learn how to use instructions to build their own drone. This nonfiction...