KATHRYN L. BRADDON, a former library media specialist, is a teacher, writer, and workshop leader based in Canandaigua, New York.NANCY J. HALL taught preschool through college for 14 years and is currently an educational consultant in gifted education in central Pennsylvania.DALE TAYLOR, Elementary Principal/K12 Curriculum Director, East Grand Forks Public Schools, East Grand Forks, Minnesota, and Associate Professor at the University of North Dakota, worked in an advisory capacity on the NCTM Standards.