In Suzanne Slade's latest book, What's the Difference?, you can celebrate the huge difference caring people make for endangered animals while you practice subtraction skills. In this sequel to her popular addition title, What's New at the Zoo?, Slade presents a new subtraction problem in each clever rhyming verse. The colorful watercolors include realistic animals set in lush spreads by illustrator, Joan Waites. So join in the celebration of our world's precious animals with this exciting title, and have fun practicing math skills along the way! The For Creative Minds educational section includes: Endangered Animal Vocabulary, Food Chains and Webs, Missing Links in Food Chains, Endangered Animals, and Fact Families. Additional teaching activities and interactive quizzes are available for free at the Sylvan Dell Publishing website.