Un día de trabajo de un astrónomo (A Day at Work with an Astronomer)

Without dentists, we wouldn’t know how to take care of our teeth! Readers will enjoy following this story’s narrator as they go for a check-up and cleaning at the dentist. The narrator learns how to brush and floss to keep their teeth healthy and clean. This book pairs a fun story with colorful illustrations to keep young readers and listeners engaged in the story.

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 primary source book provides firsthand accounts of history that give students personal insights into historical events. Learn about California’s bumpy road to statehood with this Spanish book that builds reading comprehension and social studies literacy. 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...

Fiel a su cita, llega una nueva entrega de Los chistes más morrocotudos de Geronimo Stilton. En este caso, Geronimo y compañía han recopilado los mejores chistes sobre animales: más de 500 chistes nuevos para partirse de risa... palabra de Stilton, Geronimo Stilton. ¡No te los puedes perder!

Claudia Perlo cita autores objetados o directamente ignorados en la comunidad científica, toma ideas de diferentes saberes y las hace propias, las usa como metáfora, las entremezcla para expresarse en una prosa clara donde el origen disciplinar pierde el sentido para converger en un río que corre, que cambia, que no busca llegar sino moverse. Plantea a la investigación científica como un conocimiento que debe circular, saltando de disciplina en disciplina, saliéndose de los laboratorios y de las oficinas para entremezclarse, ensuciarse las manos y dialogando encontrar respuestas...

When President Thomas Jefferson bought the Louisiana Territory from cash-strapped France in 1803, he doubled the size of the United States without really knowing what he was getting. He dispatched Meriwether Lewis and William Clark and their Corps of Discovery to explore a territory that would include part or all of fifteen future states and to seek a water route to the West Coast. Westward expansion began immediately, all for the bargain price of 15 million dollars. This book richly explores this fascinating part of history.