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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 how different topics are connected to a bigger mathematical idea.
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 Australia36.7%
2 Canada35.5%
3 United States 35.0%
4 United Kingdom31.4%
5 Germany28.5%
6 Sweden28.0%
7 Italy27.7%
8 France26.9%
9 Republic of Korea19.3%
10 Japan16.7%

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 = 4.629003 X +5.332
Correlation coefficient (r)0.741
Coefficient of determination (R2)0.549

GDP per capita (current US$)
No. of data10
Regression equation
Y = 174971.391315 X -1058.726
Correlation coefficient (r)0.803
Coefficient of determination (R2)0.645

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = -17.707601 X +87.059
Correlation coefficient (r)-0.509
Coefficient of determination (R2)0.259

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = 2.707817 X +0.705
Correlation coefficient (r)0.604
Coefficient of determination (R2)0.365

Suicide, age-standardized (per 100 000 population)
No. of data10
Regression equation
Y = -23.609966 X +17.845
Correlation coefficient (r)-0.340
Coefficient of determination (R2)0.116