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.

Introduce students to what it takes to be a good leader using this Spanish-translated nonfiction book. Engaging, primary source documents and images that support the text will inspire children to practice being a good leader! Early readers will build their literacy skills and social studies content knowledge while learning about leadership.

Si tienes un alto sentido de la justicia, mucho sentido del humor y un gran corazón, este libro es para ti. ¡No eres nunca demasiado joven para cambiar el mundo! ¿Te sumas? En esta guía práctica te damos pistas para hacerlo: consejos y tácticas para marcar la diferencia, un montón de actividades paso a paso e historias inspiradoras de niños y niñas que han abierto camino, desde activistas como Malala Yousafzai o Greta Thunberg hasta jóvenes que, como pronto harás tú, han conseguido que se escuche su voz y cambiar las cosas.

¿Qué tienes que decir cuando contestas al teléfono? Descubre cómo los buenos modales convierten el teléfono en una herramienta útil para todos.

Introduce students to one of the greatest presidents in American history, Abraham Lincoln. In this engaging and informational Spanish-translated biography, readers will learn about the amazing things that Lincoln accomplished during his presidency, and why he is considered a hero today. Build reading skills and strengthen social studies knowledge with this engaging book!