The 2nd - 3rd Grade Supplement uses the key "living" books from Adventures in U.S. History, selected specifically for 2nd and 3rd graders, to help make history come alive for younger students. Enhance your study of the animal kingdom with The Complete Book of Animals. You won't want to miss any of these great books.
Exploration to 1850 Basic or Deluxe Package is also required. Each book is conveniently scheduled in the Teacher's Manual for Exploration to 1850.