Agujeros negros (Black Holes)

For many years, people believed there were nine planets that orbited the sun. Now we say there are eight. What happened to the ninth planet, Pluto? What are the different planets like? What exactly makes a planet a planet? These are the many intriguing questions answered with this high-interest book, crafted to be accessible for readers of all levels. Young astronomers will be especially fascinated by the stunning photographs and the "Make the Grade" fact boxes.

Everyone has heard of Albert Einstein--but what exactly did he do? How much do kids really know about Albert Einstein besides the funny hair and genius label? For instance, do they know that he was expelled from school as a kid? Finally, here's the story of Albert Einstein's life, told in a fun, engaging way that clearly explores the world he lived in and changed.

¿Qué valores, comportamiento y actitudes cívicas caracterizan hoy al buen ciudadano o ciudadana? ¿Qué educación requiere la transmisión de valores cívicos? Respuesta a estas y otras preguntas pueden orientar la acción educativa del profesorado de Secundaria, ante el actual reto de educación para la ciudadanía. En este libro se propone una educación en valores cívicos, entre otros, participación, responsabilidad social, diversidad y diálogo, crítica social y solidaria, equidad de género, defensa del medio ambiente y promoción de un desarrollo sostenible.

Day of the Dead is a very important holiday in Latin America. It is sometimes incorrectly thought of as a morbid holiday, or a Mexican version of Halloween. While the word "dead" or "muertos" is in the name, this holiday is the way that the people of Mexico honor the lives of ancestors, celebrate the joy of life, and connect with their Mexican heritage. Young readers will enjoy the amazing, colorful photographs of the Day of the Dead celebration, and a supportive glossary helps expand their vocabularies along with their cultural awareness.

In My Friend Has Down Syndrome, beginning readers are introduced to different characters who have Down syndrome, how Down syndrome may affect their actions, and how we can be good friends to people who have Down syndrome. Vibrant, full-color photos and carefully leveled text engage young readers as they discover how to empathetic and inlude all kinds of friends.