Directors Dr. Sandra Abell Professor of Science Education Director of the MU Science Education Center E-mail: abells@missouri.edu       Dr. Kathryn Chval   Assistant Professor of Mathematics Education       E-mail: chvalkb@missouri.edu              Center Coordinator   Ms. Susan White       E-mail: whitesb@missouri.edu        Center Associates   Science Education   Mathematics Education     Dr. Lloyd Barrow Dr. Patricia Friedrichsen Dr. Deborah Hanuscin Dr. Mark Volkmann   Dr. Fran Arbaugh Dr. John Lannin Dr. Barbara Reys Dr. Robert Reys Dr. James Tarr    Assistants     Graduate Assistants     Undergraduate Assistants Enrique Pareja Ya-Wen Cheng Jane Davis