Eleven Atlanta teachers convicted in mass cheating scandal

Eleven former school teachers have been convicted for their involvement in a scheme to falsify student test scores.

They changed wrong answers to demonstrate student progress, and some received performance-related bonuses.

The scheme was revealed after a local paper reported that some of the scores were statistically unlikely.

Eleven were guilty of racketeering and face lengthy prison terms, with a 12th acquitted, in one of the biggest ever cheating scandals in the US.