The Mathematics Educator acknowledges the service of the following scholars who acted as referees, in addition to its editorial board members, for reviewing the manuscripts that went toward the completion of Volume 12, 2010. Without their volunteer help in providing review and advices, the quality and standards of the Journal could not be maintained. The editor, on behalf of the editorial board, would like to extend his gratitude and appreciation to all the external referees for their efforts and time contributed to the review process.