The rate of improvement in schools across England has been "unprecedented".
This is according to Sir Michael Wilshaw, chief inspector of Ofsted, who was speaking after the release of official statistics on inspection outcomes. The report found that 78 per cent of schools (16,652) are now judged to be good or outstanding.
This represents a significant improvement on the figures from 12 months ago, when only 69 per cent of learning centres achieved the rating. The nine percentage point increase is the best in the body's 21-year history.
Addressing over 100 headteachers in Manchester, Sir Michael said: "Thanks to the work of dedicated teachers and outstanding headteachers up and down the country, England's school system is making some genuine and radical advances.
"It means that thousands more children are getting at least a good standard of education. I am delighted to be able to come here and deliver the good news."
One of the main reasons for the improvement has been the changes made to the inspection framework. These alterations came into force a year ago and Ofsted believes they have had a "galvanising effect" on schools and those in teacher jobs.
Specifically, the introduction of a 'requires improvement' judgement, which replaced satisfactory, has given headteachers a straightforward way to take immediate action where required.
Sir Michael added he is "determined" to boost the education system through inspections, as the recent results prove that acceptable standards in the country "now start at good" as no institutions should settle for second best.
Of the 7,226 schools inspected by Ofsted, 39 per cent were found to have improved in the intervening period, while 41 per cent remained the same and 18 per cent declined. Every region in England recorded some kind of increase in overall effectiveness, varying from six per cent to 11 per cent.
During the last three-month period, only 60 schools were in a category of concern.
Posted by Charlotte Michaels