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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 think about how new and old mathematics topics were related.
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 Japan42.9%
2 France36.6%
3 Germany36.0%
4 Canada35.4%
5 United Kingdom34.2%
6 United States34.1%
7 Australia32.5%
8 Italy 31.3%
9 Sweden26.3%
10 Republic of Korea26.0%

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 = -2.317712 X +7.432
Correlation coefficient (r)-0.279
Coefficient of determination (R2)0.078

GDP per capita (current US$)
No. of data10
Regression equation
Y = -21818.131994 X +56246.220
Correlation coefficient (r)-0.075
Coefficient of determination (R2)0.006

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = -2.425865 X +82.813
Correlation coefficient (r)-0.052
Coefficient of determination (R2)0.003

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = 1.642086 X +0.928
Correlation coefficient (r)0.275
Coefficient of determination (R2)0.076

Suicide, age-standardized (per 100 000 population)
No. of data10
Regression equation
Y = -32.819260 X +22.104
Correlation coefficient (r)-0.355
Coefficient of determination (R2)0.126