Everything we know about Mars's surface has come from rovers. These trusty robotic vehicles roll across the planet taking samples, testing new technology, and sending back photos for… More →

Follow the ruby-throated hummingbird's journey to Mexico and Central America in the Marvelous Migrations series. Focused on 21st century content, engaging inquiry-based sidebars encourage… More →

In 1932, Akron, Ohio was no better off than other parts of the country. Since Black Tuesday in '29, companies are closed, men all over the state are out of work, and families are running out… More →

Using the new C3 Framework for Social Studies Standards, Rugby World Cup in the Global Citizens: Sports series explores the topic through the lenses of History, Geography, Civics, and… More →

You don't need a lot of expensive equipment to start running. With a good pair of shoes and a desire to challenge yourself physically, you can start running for fun and fitness. Look inside… More →

Learn about the connection between math and running. More →

Ten-year-old Four Winds is a young Lakota girl caught up in the changes brought about by her people's forced move to the reservation. Set in the Dakota Territory, it is the year 1880. Four… More →

In this book, simple, age-appropriate text introduces readers to the saber-toothed cat, from what it looked like to how it lived. Large, exciting images fill the pages, while sidebars… More →