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Let teachers teach, say Finnish authorities

28 November 2013 Last updated at 20:42 GMT

In the second film in a series, BBC Wales education correspondent Arwyn Jones asks those in power in Finland how they maintain education standards as the country has topped international rankings in the past.

When the last set of Pisa results came out three years ago, Wales had slipped down the tables and is hoping for a better showing in the latest figures next week.