Sally J.D., Sally P.J. TriMathlon: A Workout Beyond the School Curriculum

CRC Press, 2003. — 218 p.Swim, Bike, and Run your way to math success!
This innovative book offers a challenging athletic workout for anyone interested in building their math muscle. Games, puzzles, and other activities involve the reader in a contest which motivates math learning and appreciation.
An excellent resource for teachers, parents, math teams, and home schooling.