From the AHA web site:
The William and Edwyna Gilbert Award for the Best Article on Teaching History recognizes annually outstanding contributions to the teaching of history through the publication of journal articles. The prize was endowed by a generous gift from Mrs. William Gilbert in memory of her husband, a distinguished member of the history department at the University of Kansas, and further donated to following Mrs. Gilbert's death in May of 2011.
Articles by AHA members, published between June 1, 2011 and May 31, 2012, may be nominated for consideration. Both the author of the winning article and the journal that publishes it will each receive $1,000. Journals and individual members may submit nominations on the teaching of history (including scholarship of teaching and learning, methodology and theory of pedagogy). Journals, magazines, and other serials can submit up to two articles for each award cycle.
Each nominator is required to provide a brief letter of support (no more than two pages) with the article. See past winners of this award.
One copy of each letter of support and article must be sent for each member of the Committee on Teaching Prizes. Entries must be postmarked by July 15, 2012. Entries will not be returned. No faxes will be accepted.
Send six copies of your completed entry to:
Gilbert Award Coordinator
American Historical Association
400 A St. S.E.
Washington, D.C. 20003