Círculos matemáticos

The world's myths are filled with characters, creatures, and stories that have fascinated people for thousands of years. This series mixes dramatic retellings and non-fiction information to give a full picture of a culture's myths. This book explores the gods, goddesses, heroes, villains, tricksters, and quests that make Egyptian myths and legends so compelling. Fully translated Spanish text.

Learn about some animals that are in danger of becoming extinct and what people are doing to Save the Animals.

The US president is the face of the United States to the rest of the world. However, he or she doesn’t have unlimited power within the country. The president has certain powers given by the Constitution, including the ability to make treaties, appoint some important government officials, and veto laws. Readers learn the many duties of the president in simple, clear language appropriate for both younger readers and older readers looking for a succinct review of the topic. Fact boxes supplement the main content with important details about checks and balances, amendments, and more that affect...

Método dirigido a jóvenes y adutlos estructurado en tres niveles: elemental, medio y superior. Sigue un enfoque situacional basado en la sistematización de estructuras. Contiene una amplia tipología de ejercicios gramaticales. Puede utilizarse para la clase o para el autoapendizaje. Al final del libro hay un apéndice gramatical y un glosario de palabras. Incluye un CD audio para trabajar la destreza oral.