Cluefinders 6th Grade Adventures Empire of the Planet People - Plus Bonus Mystery Mansion Arcade Game - Deluxe 2 CD Set Builds over 150 skills that 6th-graders need - math, language arts, science, social science, and problem solving 4 amazing levels that increase the difficulty and improve skills Detailed help features when a tough challenge slows you down Kids can celebrate accomplishment with encouraging progress reports For ages 10 to 12