Super Solvers is a Literacy SourceBook textbook used for problem solving. It is geared for children in 2nd or 3rd grade, and contains stories about problem solving.
Truman's Aunt Farm: a fictional story about a boy who sends away for an ant farm, but instead of ants, he gets aunts!
The Paper Crane: a Japanese folk tale about a mysterious man who makes magical paper cranes
Mary Rodas: questions and answers from a real toy designer
Pigsty: a fictional story about a boy's very messy room
Belling the Cat: a retelling of the fable
Kids Helping Kids: real kids' suggestions for solving problems
The Code King: a fictional story of kids who solve a mysterious code followed by a description on how the author/illustrator draws his pictures
Marti and the Mango: a fictional story about a mouse's search for a mango to eat