United Press InternationalGates Foundation invests more than $300 million in ed reformWashington PostThe Bill and Melinda Gates Foundation Thursday announced a $335 million investment in teacher effectiveness, with major grants for experiments in tenure, evaluation, compensation, training and mentoring in three large school systems ...Gates Foundation gives $335 million for effective teaching in four statesSeattle TimesGates Foundation gives $335M for teacher qualityThe Associated PressL.A.