La alianza de Tanis

La celebración del Cinco de Mayo es una fiesta que recuerda la primera vez que las tropas imperiales de Napoleón III caían vencidas, demostrando que no eran invencibles. Y fueron vencidas en la Batalla de Puebla por un grupo en desventaja militar y numérica, para mayor deshonra de Napoleón III. Sin embargo, no es un día feriado en todo el país. En Puebla, por razones obvias, se celebra año a año, algunas veces incluso recreando la batalla. Pero no en el resto de México. En los Estados Unidos de América, en cambio, se celebra sólo en los estados del Sur que fueron parte de México, ...

If it were possible to shrink down and take a tour of a human body, would you want to go? Readers will get that chance when they explore the body of a guy named Marty, who will let them check out the body systems that keep his heart beating and his body moving every day. With the help of a tiny ship that goes through his ears and all the way through his digestive system, readers will learn exactly what they are made of with this great book.

Life Long Ago brings ancient civilizations to life and reinforces important early elementary social studies standards such as time, continuity, and change. Students will learn what daily life was like, how ancient peoples governed themselves, how they communicated, and how the influences of ancient cultures are still felt today.

"Some things are so huge or so old that it's hard to wrap your mind around them. But what if we took these big, hard-to-imagine objects and events and compared them to things we can see, feel and touch? Instantly, we'd see our world in a whole new way." So begins this endlessly intriguing guide to better understanding all those really big ideas and numbers children come across on a regular basis. Author David J. Smith has found clever devices to scale down everything from time lines (the history of Earth compressed into one year), to quantities (all the wealth in the world divided into one...