El final de todos los agostos

In cartoon format, uses zombies to explain the science of forces and motion. Fully translated Spanish text.

Young readers may have heard about the benefits of using and making the most of their resources, but how does that factor into an economic discussion? This thorough discussion defines resources and describes the different types of resources and why some divide them into three categories and others choose four. The book also addresses the concept of scarcity, showing readers how, because all resources have their limits, it is important to use them responsibly and efficiently in a healthy economy.

Meaning "River of the Colorful Birds," Uruguay is a small country in South America that is covered by crisscrossing rivers and lush hills. Home to approximately 3.5 million people, the country is often regarded as the most stable and prosperous country in Central and South America. Uruguay produces 95 percent of its electricity from renewable energy and is known as one of the most socially progressive nations in the world. Allow your readers to learn more about Uruguay's unique culture through this informative book, which features engaging sidebars and vibrant photographs.

Tome un viaje a Cuba tropical y aprender sobre la historia y la cultura de este país caribeño. Este texto también incluye fotografías de color y preguntas de pensamiento crítico que traen el país de Cuba a la vida de los lectores jóvenes. Take a trip to tropical Cuba and learn about the history and culture of this Caribbean country. Now in Spanish, this carefully leveled text also includes full-color photographs and critical thinking questions that bring the country of Cuba to life for young readers.