This CD from The Learning Company is a great way for 4th graders to learn Math, Language, and Science in an interactive and engaging way. It is compatible with Microsoft Windows 2000, XP, 98, and 95. With Clue Finders 4th Grade Adventures, your child will solve exciting mysteries and crack challenging puzzles while learning important skills. The CD is perfect for homeschoolers, teachers, and parents who want to provide their children with fun and educational activities. Please be sure to check your computers systems requirements for this game to work. Please e-mail me with any questions. Thanks for looking!