Jumpstart 4th Grade (Ages: 8-10) Use your 4th Grade problem-solving skills to unearth the secrets of the lost treasure map! Pack extreme fun and exciting adventure into learning as you find clues in caves, unlock hidden tunnels, and solve the mystery. Master skills in Math, Geography, Grammar, Science, and more! Auto-leveling helps children learn at the pace that suits them. Windows Vista, XP, 2000