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Question: How often do these things happen in your mathematics lessons? - There is noise and disorder.
Choices: "Every lesson" "Most lessons" "Some lessons" "Never or almost never"
Data: % of "Every lesson" "Most lessons"
Period:
Area:
10 countries/ areas
Highlight:
1 France 50.0%
2 Australia41.6%
3 Sweden37.0%
4 Italy33.7%
4 United Kingdom33.7%
6 Canada32.4%
7 Germany31.4%
8 United States22.3%
9 Republic of Korea9.2%
10 Japan5.2%

Note
The data of Azerbaijan are collected only in Baku. The data of Ukraine are collected from 18 out of 27 regions.

Source
OECD PISA 2022

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data10
Regression equation
Y = 2.029671 X +6.053
Correlation coefficient (r)0.680
Coefficient of determination (R2)0.462

GDP per capita (current US$)
No. of data10
Regression equation
Y = 32264.357851 X +39364.218
Correlation coefficient (r)0.310
Coefficient of determination (R2)0.096

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = -1.119227 X +82.332
Correlation coefficient (r)-0.067
Coefficient of determination (R2)0.004

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = 1.586489 X +1.009
Correlation coefficient (r)0.740
Coefficient of determination (R2)0.548

Suicide, age-standardized (per 100 000 population)
No. of data10
Regression equation
Y = -19.055616 X +16.750
Correlation coefficient (r)-0.574
Coefficient of determination (R2)0.329