Finland classroom success secrets, BBC special report
Education Minister Huw Lewis has warned parents not to expect a rise in Wales' literacy, maths and science results in international figures, called the Pisa rankings, published from next month.
When the last set of results came out three years ago, Wales had slipped down the tables.
BBC Wales education correspondent Arwyn Jones has been to Finland - a country that has topped the Pisa rankings in the past.
In the first of a series of special reports, he looks at what Finland is doing right.
He took a teacher from Wales with him.