Ofsted has warned that too many families in the UK face a postcode lottery when it comes to determining whether their youngsters will enjoy a good education or not.
As the body published its annual report, chief inspector Sir Michael Wilshaw said millions of children face inequality.
Far too many people will receive a certain standard of education depending on where they live, with some areas in the UK boasting a smaller than 50 per cent chance of featuring a good or outstanding school.
"We need to find out what is happening and inspect where necessary. We will also work with local areas to support them and help them link up with best practice," explained Sir Michael.
Across the country, 70 per cent of schools were rated as either good or outstanding, up from 64 per cent five years ago, indicating the wider picture is improving.
Despite this, some 2.3 million pupils in the UK are forced to attend schools where standards have been found to be below par in the latest wave of Ofsted inspections.