Finland sees teaching the Welsh way ahead of Pisa results
29 November 2013 Last updated at 09:00 GMT
The global league tables for education are published next week.
The Pisa results come round every three years, and this time the focus will be on mathematics. Wales lagged behind most other countries, coming 40th in maths in 2009.
Finland on the other hand has consistently performed well.
So as part of the Making the Grade series, Good Morning Wales has organised a teacher exchange to see what Finland and Wales can learn from each other.
Chris Parry, a maths teacher from Ysgol Friars in Bangor has already spent a week in Helsinki.
Now, in part 3, the attention turns from Finland to Wales.