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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 defend our answer to 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 France61.5%
2 Germany 59.2%
4 United Kingdom50.0%
5 Japan48.8%
6 Canada46.9%
7 Italy46.4%
8 United States44.8%

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 data7
Regression equation
Y = 0.532820 X +6.312
Correlation coefficient (r)0.120
Coefficient of determination (R2)0.014

GDP per capita (current US$)
No. of data7
Regression equation
Y = -54105.417478 X +78374.282
Correlation coefficient (r)-0.230
Coefficient of determination (R2)0.053

Life expectancy at birth - Both sexes (years)
No. of data7
Regression equation
Y = 5.576460 X +78.666
Correlation coefficient (r)0.174
Coefficient of determination (R2)0.030

Fertility rate, total (births per woman)
No. of data7
Regression equation
Y = 1.551639 X +0.682
Correlation coefficient (r)0.482
Coefficient of determination (R2)0.232

Suicide, age-standardized (per 100 000 population)
No. of data7
Regression equation
Y = -8.710048 X +13.910
Correlation coefficient (r)-0.170
Coefficient of determination (R2)0.029