The approach takes some learning out of the formal classroom

A pilot of the foundation education scheme for three to seven-year-olds is currently being tried out in 42 primary schools, nurseries and playgroups.

The approach is said to be unique to Wales, combining the early years curriculum with organised play.

Jane Davidson said she was sure it would reduce children's disaffection.

The approach is based on evidence which suggests that children do not begin to benefit from extensive formal teaching until they reach the ages of six or seven.

It places emphasis on the youngest children learning by doing, rather than completing exercises in books.

'Active learning'

The plan, which was first proposed in 2003, aims to develop youngsters' speaking and listening skills as the basis for reading and writing.

The approach also involves using the outdoors as "another classroom", where children can get fit and also experience nature.

We need to provide our young children with a curriculum which is more appropriate to their stage of development Jane Davidson

A team of academics from London, Oxford and UWIC in Cardiff gave their interim report on the success of the pilots, which started in 2004, earlier this year.

Supporters argue that a gentler approach, tailored to the needs of each child, will keep youngsters interested for longer and give them valuable skills for later life.

Launching the plans at an education conference in Cardiff, Ms Davidson said that evidence from at home and abroad made it clear it was time to look again at when young children are introduced to formal education.

She said: "We need to provide our young children with a curriculum which is more appropriate to their stage of development and provides an approach that caters for their individual needs.

"An approach which I am sure will lead to a reduction in disaffection and will encourage more students to stay on at school and become lifelong learners."

The assembly government is aiming to double the number of pilots to 84 by introducing it to around 40 more schools in disadvantaged areas from next September.

The programme would then expand to other areas for three to five-year-olds from September 2008 and be in place everywhere in Wales by the end of the 2010-11 school year.

"Nanny state"

However, the former Chief Inspector of Schools for England, Chris Woodhead, has said more able pupils may be held back and that teachers not politicians should decide the best way to teach.

Mr Woodhead's views have been echoed by Conservative education spokesman William Graham.

He said the scheme was the "nanny state" in operation and accused Ms Davidson of dictating to schools.

Plaid Cymru's Janet Ryder welcomed her announcement but warned she would monitor the roll-out closely to ensure it was properly funded.