Since 2003 Finland's 15-year-olds lost 60 points in maths, more than any of 35 countries
544 points in 2003, 484 in 2022. Of 35 countries, 22 got significantly worse and 3 better, Turkey and Macao most of all.
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In the 2000s Finland was the model for schools worldwide: its 15-year-olds outscored almost everyone. In 19 years its mean fell below the 2003 OECD average.
Each bar is the change in the mean maths score from 2003 to 2022: the five largest falls and the three largest rises.
- Finland: maths, age 15 points
2003: 544.3; 2022: 484.1
- Iceland: change 2003→2022 points
−56.2
- Netherlands: change 2003→2022 points
−45.1
- New Zealand: change 2003→2022 points
−44.4
- Belgium: change 2003→2022 points
−39.8
- Brazil: change 2003→2022 points
+22.7
- Macao: change 2003→2022 points
+24.7
- Turkey: change 2003→2022 points
+29.7
OECD PISA 2022, maths trend table: the 2003→2022 change with its standard error, linking error included. Countries tested in both years: 35.
In 2015 the test moved from paper to computer; the OECD links the scales. In Turkey the 2022 test covered 74% of 15-year-olds, as some are out of school. The card says nothing about causes.
A question for this picture
What happened to reading among the same Finnish 15-year-olds?