Salvar a las aves migratorias

"Roberto has to watch his family's sheep, but he finds it boring. He tries to get what he wants by crying wolf. But what happens when there is real danger?"--

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 focuses on the history of California’s Native American tribes: the Tongva, Yokuts, Yana, and Yahi. 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 level. Packed with...

This Spanish book provides firsthand accounts of history that give personal insights into historical events. This primary source book focuses on the lives of Native Americans as pioneers began moving west during the 1800s. Students will explore significant historical events such as the Indian Removal Act, the Trail of Tears, the Seminole Wars, Red Cloud's War, the Battle of the Little Bighorn, the Nez Perce? War, Wounded Knee, and more. With a visually appealing layout, this ESL book features captivating text, fun facts, sidebars, and time lines that help students grasp the essential concepts ...

What is matter and where can it be found? Everything in the world is made of matter, whether it is a solid, a liquid, or a gas. Important ideas about matter such as volume, mass, and how matter changes state are conveyed through a series of easy-to-do experiments.

“Al tener el armario vacío, pude observar en el fondo del lateral derecho una hendidura que me produjo curiosidad, porque pensé que se estaba estropeando, aunque las condiciones de temperatura y humedad eran óptimas para su conservación. Pasé los dedos por ella y vi una tabla que se diferenciaba, por la veta de la madera, del resto del suelo del armario; insistí tocando y estuve segura de que aquella tabla se podía levantar.” Demonios en el armario propone una búsqueda del ser a partir de una trama entretenida y una prosa fluida. María Montesinos, protagonista de la historia,...

La estética de la Baja Edad Media, de la mano de la escolástica, aporta a la metafísica de la proporción y a la metafísica de la luz un sistema conceptual. Ésta es, de hecho, la “primera sistematización” del vocabulario estético. La antigüedad había trabajado ciertos contenidos de este vocabulario, pero no había construido ningún sistema que garantizara un cierto rigor de uso. Será la Baja Edad Media, gracias al énfasis puesto en la obra aristotélica y especialmente en el “organon”, la que ofrecerá a la estética su primera sistematización conceptual que, además,...