"Word problems (Mathematics)" . . "Resolución de problemas." . . "Problem solving." . . "Problem solving Study and teaching (Secondary)" . . "Mathématiques Étude et enseignement (Secondaire)" . . "Mathématiques." . . "Mathematics." . . . . "Résolution de problème." . . "Matemáticas Estudio y enseñanza." . . "Matemáticas / Estudio y enseñanza." . "Jeux mathématiques." . . "Mathematics Study and teaching (Secondary)" . . "Lehrerhandbuch" . . . . . . . . "Problem solving strategies : crossing the river with dogs, and other mathematical adventures" . "Problem solving strategies : crossing the river with dogs : and other mathematical adventures"@en . . "Problem solving strategies crossing the river with dogs : and other mathematical adventures : instructor's resource book and answer key"@en . "Problem solving strategies : crossing the river with dogs; and other mathematical adventures" . . . . . . . "Problem solving strategies crossing the river with dogs : and other mathematical adventures"@en . . . . . . . . "Problem solving strategies" . . "Problem solving strategies : crossing the river with dogs : and other mathematical adventures : instructor's resource book and answer key" . . . "Problem solving strategies : teacher's resource book and answer key : crossing the river with dogs and other mathematical adventures"@en . "Problem solving strategies : teacher's resource book and answer key : crossing the river with dogs and other mathematical adventures" . . . . "Problem solving strategies : crossing the river with dogs, and other mathematical adventures. Teacher's resource book and answer key" . . . "Crossing the river with dogs" . "Crossing the river with dogs"@en . "Math text focusing on problem solving techniques."@en . . . . . "Problem solving strategies crossing the river with dogs and other mathematical adventures"@en . . . "Problem solving strategies : crossing the river with dogs : and other mathematical adventures ; Teacher's Resource Book and Answer Key"@en . "Problem solving strategies : crossing the river with dogs and other mathematical adventures" . . . . . . . . . . . "Crossing the river with dogs, and other mathematical adventures" . . . . "Problemlösen." . . "Résolution de problème Étude et enseignement (Secondaire)" . .