Contention over salary terms and working conditions are being blamed in part for an unusually high teacher turnover rate this year in Reynoldsburg, in Central Ohio. The Columbus Dispatch reports the district lost nearly one in five teachers at the end of the 2013-2014 fiscal year, nearly twice the rate of turnover the previous year. And a higher percentage of teachers left voluntarily, most taking jobs in other districts. The teachers union says teachers are leaving partly because of a controversial contract proposal to make annual salary increases based on performance measures rather than automatic, but class sizes and other working conditions are also at issue. .