Karen McDonald

Discover gems hidden by the legendary dragon, the Firedrake. Explore and practice skills with number

Finding gems is not all luck. Improve your chances by using logic to choose squares of land to excav

Make up and solve your own or others' math problems or games using 17 different "pages" on which

Help Xyla and Yabu trade gems back and forth by learning to add and subtract with number bonds. Use

Students learn to understand and calculate area and perimeter in 42 multiple-choice activities in 7

Players develop beginning to more advanced math skills with integers, coordinate graphs, and simple