Engage students in 24 lessons about folktales and legends, cultural celebrations, and important inventors and innovations. Help Meriwether Lewis and William Clark to record their discoveries.  Learn about design from Pierre Charles L’Enfant. Devise a communication system for Helen Keller.  Tell a tale with Daniel Boone. Construct a May pole for a spring celebration.  In Mind Missions, students solve the problems of yesterday as they prepare to meet the challenges of tomorrow.