THE GAP between the best and worst schools in Wales is getting larger, warned the head of education watchdog Estyn in Newport yesterday.

Dr Bill Maxwell was also critical of the quality of education services provided by some local authorities.

He was unveiling his first annual report as Chief Inspector of schools and colleges at St Joseph's RC High School.

He said the picture for 2006/07 was positive in many respects.

But, although standards had improved, the way education and training was provided must continue to be transformed to match best performing schools in the UK and abroad.

He said an increasing number of schools had showed excellence across the seven areas inspected by Estyn and it was clear this was due to better leadership as well as improvements in teaching.

More outstanding work was being done in further education and colleges were exceeding Assembly targets.

"Despite an increase in the number of schools that are showing excellence in aspects of their work, the gap between the best and the worst is getting larger," said Dr Maxwell.

"Other schools are very close to entering the formal category of 'causing concern' and, overall, around 10 per cent of schools are clearly not doing well enough."

Sixteen schools were identified as need special measures or significant improvement - double the number of the previous year.

"Some local authorities did not focus their support on under-performing schools at an early enough stage to prevent them becoming a cause for concern.

"The quality of education services provided by local authorities inspected by Estyn continues to be highly variable.

Two-thirds of the local authority education services inspected were judged to have uncertain prospects for improvement."

300 schools inspected Three hundred schools were inspected during the report period - September 2006 and August 2007.

Eighteen were awarded the top grade across all seven areas of their work and, according to the report, four were in Newport.

St Joseph's RC High School, where yesterday's launch was held, Crindau Primary, Durham Road Infants and Lliswerry Infants.