Criptología digital (Digital Cryptology)

Read Along or Enhanced eBook: Find out what surfers need to know to have fun and stay safe in the water in this engaging, Spanish-translated nonfiction title! Invite readers to learn about the history of surfing, surfing culture, what equipment is needed, and more using vibrant images and informational text in conjunction with math skills and upper-level features such as chapter format, a glossary of terms, and an index.

In 1876, France decided to give the United States a very big and very special present--the Statue of Liberty. The gift was to commemorate the 100th birthday of the United States, and just packing it was no small feat--350 pieces in 214 crates shipped across the ocean. The story of how the 111-foot-tall lady took her place in the New York Harbor will fascinate young readers.

Cuadernos no solo para leer o escuchar, sino para revivirlos activamente, en los que se entra a través de sugerentes escenarios y situaciones con construcciones, personajes, objetos, juegos y adhesivos. ¡Porque jugar es la verdadera forma de aprender!

An introduction to ostriches, including their size, diet, and everyday behavior and highlighting differences between those in the wild and those living in zoos.