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Question: This school year, how often did your teacher do the following things in your mathematics lessons? - The teacher asked us to explain how we solved a mathematics problem.
Choices: "Never or almost never" "Less than half of the lessons" "About half of the lessons" "More than half of the lessons" "Every lesson or almost every lesson"
Data: % of "More than half of the lessons" "Every lesson or almost every lesson"
Period:
Area:
10 countries/ areas
Highlight:
1 United Kingdom55.3%
2 Germany55.2%
3 Australia54.7%
4 United States54.3%
5 Sweden53.8%
6 France 53.7%
7 Canada52.1%
8 Italy50.4%
9 Japan43.9%
10 Republic of Korea36.3%

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 = 5.136580 X +4.036
Correlation coefficient (r)0.769
Coefficient of determination (R2)0.591

GDP per capita (current US$)
No. of data10
Regression equation
Y = 145836.586692 X -25402.308
Correlation coefficient (r)0.626
Coefficient of determination (R2)0.392

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = -17.141561 X +90.737
Correlation coefficient (r)-0.461
Coefficient of determination (R2)0.213

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = 4.320633 X -0.723
Correlation coefficient (r)0.900
Coefficient of determination (R2)0.810

Suicide, age-standardized (per 100 000 population)
No. of data10
Regression equation
Y = -49.820443 X +36.493
Correlation coefficient (r)-0.670
Coefficient of determination (R2)0.449