Solange Da Silva Correia helps her grandchildren get ready for school in their bedroom of her riverside home near the town of Caviana in Amazonas, Brazil. (Solange Da Silva Correia is featured in the book What I Eat: Around the World in 80 Diets.) The children load up their backpacks and use one of the family's outboard canoes to get to school in nearby Caviana, 20 minutes downriver.