Welcome to the fascinating world of early North America - the land that once was home to mastodons, mammoths, and the hunters who followed the herds.The activities in this book provide an overview of life in North America beginning with the first migrations of people across the Bering land bridge during the last Ice Age.The eight full-color transparencies at the back of the book can be used alone or with specific activities listed in the table of contents. Grades 4 to 8