Jóvenes rebeldes. 25 adolescentes que están cambiando el mundo

Families can be big or small, but all resemble each other in one aspect: they have a past and a present that, is also part of a broader history, that of a culture or race, or that of the world. The reader will see that family trees are used both by historians and everyday people who trace generations of relatives. Although family trees imply blood relations, the ties of love and friendship are often just as important.

Huracanes y tornados is one book in the Spanish-language Gran Atlas de la Ciencia series that covers today's most popular science topics, from digital TV to microchips to touchscreens and beyond. Perennial subjects in earth science, life science, and physical science are all explored in detail. Amazing graphics--more than 1,000 per title--combined with concise summaries help students understand complex subjects. Correlated to the science curriculum in grades 5-9, each title also contains a glossary with full definitions for vocabulary.

Hercules, son of the god Zeus and a mortal woman, renowned for his great strength, performs twelve dangerous tasks to atone for an attack on his wife and children.

Este cuaderno se dedica por entero al estudio de las normas de uso de los llamados signos de puntuación y de algunos otros signos ortográficos. Al final, hay también un apartado que se dedica al repaso de algunas reglas de ortografía de la palabra, que fueron estudiadas en cuadernos anteriores.