Exam results and grades will no longer be the key focus of Ofsted inspections in England, under new plans.
Ofsted chief inspector Amanda Spielman says the focus on performance data has narrowed what is taught in schools.
She said, in a speech in Newcastle on Thursday, inspections hadplaced too much weight on exam results.
Teachers and heads have long argued education watchdog Ofsted's focus on data, along with school league tables, has made schools "exam factories".
Chris Keates, leader of the Nasuwt teachers' union, said teachers would welcome plans to "shift the focus of inspection and treat teachers as experts, rather than data managers".