Cuenta Tus Gallinas

La incorporacion de la mujer almundo laboral es uno de los grandes logros sociales del siglo XX. Susconsecuencias se han reflejado en todos los ambitos de la vida y han tenidorepercusiones en todos los niveles, especialmente en el linguistico. No muy atrasquedan los tiempos en los que la Real Academia Espanola definia las variantesfemeninas coronela como "la esposadel coronel" y medica como "la esposadel medico." La presencia de la mujer en profesiones que, hasta hacerelativamente poco, eran patrimonio exclusivo de los hombres ha generadodebates de gran interes. Uno de los mas recientes en...

When many think of the Constitution, they think of the Founding Fathers: Thomas Jefferson, John Adams, Benjamin Franklin...but neither Jefferson nor Adams even signed it. Facts like this will surprise readers, while further information will enlighten them about both the crucial document called the U.S. Constitution as well as about its creation and ratification. This essential volume is a significant addition to any elementary social studies collection.

What has a head, two tails, and shoots across the sky? A comet. Coming from the far edges of the solar system, most comets travel around the Sun, while meteors appear as flashing streaks of light in the night sky. Explore these amazing celestial wonders as they zip through space! This book looks at the difference between comets and meteors and their effects on Earth. The physical characteristics of each are identified in detail. This book won’t come crashing down! It’s filled with fun facts that give additional information on this exciting science topic. This book allows students to use...

Esta obra reúne textos escritos por Andrés Lira sobre el exilio español y los maestros de ese exilio, como: José Medina Echavarría, José Miranda, Ramón Iglesia, Juan Antonio Ortega y Medina, Eugenio Ímaz y José Gaos, quienes han formado parte tanto de la Universidad Nacional Autónoma de México como de El Colegio de México.