Call for Sets of Calendar Problems: Mark Your Calendar
<12$%EktArticle_Type12$%> Department <12$%EktPage_Part12$%> a <12$%EktIssue_Month12$%> 1 Vol. 103, No. 1 • August 2009 MaAthemaMAtics TteaAcher 49The monthly Calendar has been a centerpiece of the Mathematics Teacher for the last twenty-five years. The Editorial Panel of the Mathematics Teacher invites groups affi
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