Schools in Wales are being urged to consider extra testing for GCSE pupils to improve our standing in the international league tables.
It comes after Wales performed relatively poorly in recent PISA tests, which compare results across different countries.
Now the Welsh Government Education Minister wants 15-year-olds here to be tested every year - but teachers say the idea is a "distraction".
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Stars of Team GB at this years' Olympics were in Wales today, as part of ITV's I Am Team GB campaign.
As Wales gets involved in the country's biggest sports day - Our Olympians have been getting in on the action.
ITV switched off all of its channels for an hour on Saturday as part of a national sports day event.