The Department for Education has defended standards at secondary schools across the country, saying there had been "incredible improvements" over the past few years.
It comes after Ofsted chief Sir Michael Wilshaw criticised performance as "not good enough".
In a report released today, Sir Michael said the proportion of secondaries rated as 'inadequate' had risen dramatically over the past 12 months.
But a DfE spokesman said Ofsted's tougher new inspections were behind the figures, as they left substandard schools with 'nowhere to hide'.
We share Sir Michael Wilshaw's ambition to keep raising standards in secondary schools but we should acknowledge we have seen incredible improvements in recent years - all achieved against the backdrop of Ofsted's much tougher inspection framework which leaves no room for underperforming schools to hide.
They added that around one million more children were being taught in good or outstanding schools since 2010.
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