作者: Kerri O Donnell

Readers take a journey in Alaska’s Denali National Park. This book explains the park’s topography, wildlife, and history, while teaching Math concepts along they way. …

Although Earth has only one moon, other planets in our solar system have more. Readers learn about the fascinating features of these other moons. …

This book introduces basic addition and subtraction problems through the chronological overview of exploration in North America. Includes artifacts such as an excerpt from Champlain’s book about his …

This book takes an in-depth look at the Spanish missions that once spanned the state of Texas. Some of the most striking buildings were erected and able to survive and thrive during the days of wild …

The story of California’s gold rush has all the aspects of a great drama. Countless characters crossed great distances to fulfill their dreams of obtaining riches in the golden land of "El Dorad …