Last July, the Atlanta Public Schools became the poster district for teachers and principals behaving badly. State investigators found that, in 44 schools across the city, 178 teachers and administrators had systematically cheated on the state standardized tests taken by their students in 2009. The largest cheating scandal by far has cast a pall over Atlanta's national reputation for dramatic rises in student scores over recent years. State investigators found evidence of "cheating parties" at some schools, where teachers and principals made wholesale changes to student answer sheets. The job of setting things right has fallen to Erroll Davis, the new superintendent of Atlanta Public Schools, who arrived in July after serving for the past five years as the chancellor of Georgia's university system and its 33 campuses. To that end, the district has clarified the chain of custody of tests, including careful documentation, from the time they arrive at schools until they are returned for scoring. Schools are now required to keep tests in sealed storage rooms monitored by cameras and accessible only by a special key that records any entry. Davis also has imposed yearly ethics training for all educators in the district as a condition of ongoing employment.