亚特兰大教室为了给学生高分，改动学生考卷！

The 55,000-student Atlanta public school system rose in national prominence during the 2000s, as test scores steadily rose and the district received notice and funding from the Broad Foundation and the Gates Foundation. But behind that rise, the state found, were teachers and principals in 44 schools erasing and changing test answers.

http://news.yahoo.com/americas-biggest-teacher-principal-cheating-scandal-unfolds-atlanta-213734183.html