Prepared at Penn State
Mid-Atlantic Center for Mathematics Teaching and Learning
18 June 2005 - Sue, Evan McClintock, Donna Kinol
Edited at Penn State
Mid-Atlantic Center for Mathematics Teaching and Learning
14 February 2007 - Shiv Karunakaran
23 February 2007 - Rose Mary Zbiek, M. Kathleen Heid
Edited at the University of Georgia
16 March 2009 -- Laura Singletary and Sarah Donaldson