Mighty Math Number Heroes Master 3 Years of Math for Grades 3 - 6 (Ages 8 - 11) Students master fractions, multiplication, division, 2D geometry, probability and much more Pop-up Fact Book offers you help with geometry terms and concepts Grow Slide feature automatically records your child's progress Windows 95/98/Me/2000/XP Pro, Mac OS 7/8/9/X Classic Mode,