Criptología digital (Digital Cryptology)

Practice nonstandard measurement at the zoo! This exciting, Spanish-translated title encourages readers to practice measuring their favorite zoo animals, such as elephants, giraffes, pandas, and more. A gorilla weighs the same as three men! When a cheetah runs, its stride length is the length of three men! An elephant weighs the same as three pickup trucks! Vivid images, fun practice questions, early STEM themes, and helpful mathematical diagrams make nonstandard measurement entertaining and easy for children to understand.

Descubra por qué Selena, la reina de la música tejana, ¡se convirtió en una de las artistas méxico-americanas más célebres del siglo XX! Discover why Selena, the Queen of Tejano music, became one of the most celebrated Mexican-American entertainers of the twentieth century in this Spanish edition of the WHO HQ series! De joven, Selena Quintanilla cantaba en un grupo llamado Selena y Los Dinos con su hermano y su hermana. La familia actuaba en ferias, bodas, fiestas de quince años y en las esquinas de su Texas natal. Selena aprendió a cantar en español y pronto se hizo muy popular...

- Tintin is a world famous series with 75 years of staying power! The series' enduring popularity is evident from its elaborate website (www.tintin.com) that offers Tintin news and information in five different languages. The news section of the site indicates that in addition the ongoing publication of new books about the series and about the author's life, Tintin art exhibitions and theatrical adaptations continue worldwide. The site also includes a list of retailers who carry Tintin products, and its own online store which offers a generous helping of books, apparel, accessories, toys,...

Con texto cuidadosamente organizado en niveles y fotografias frescas y vibrantes capturamos la atención de los jóvenes lectores para que aprendan sobre las tradiciones y celebraciones de Hanukkah. Además de tener un glosario con imágenes, ayudamos a desarrollar habilidades de lectura informativa con preguntas de pensamiento crítico apropiadas para esta edad. Carefully leveled text and fresh, vibrant photos engage young readers in learning about the traditions and celebrations of Hanukkah. Age-appropriate critical thinking questions and a photo glossary help build nonfiction learning...