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Question: How often have you encountered the following types of mathematics tasks during your time at school? - Solving an equation like 2(x+3) = (x+3)(x-3)
Choices: "Frequently" "Sometimes" "Rarely" "Never"
Data: % of "Rarely" "Never"
Period:
Area:
10 countries/ areas
Highlight:
1 Japan15.3%
2 Canada14.6%
3 Sweden14.0%
4 Australia 13.9%
5 Germany13.3%
6 United States13.2%
7 United Kingdom13.0%
8 France12.2%
8 Italy12.2%
10 Republic of Korea11.1%

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 = 11.116868 X +5.178
Correlation coefficient (r)0.334
Coefficient of determination (R2)0.112

GDP per capita (current US$)
No. of data10
Regression equation
Y = 364072.538860 X +581.767
Correlation coefficient (r)0.314
Coefficient of determination (R2)0.099

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = 26.266552 X +78.512
Correlation coefficient (r)0.142
Coefficient of determination (R2)0.020

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = 8.202360 X +0.390
Correlation coefficient (r)0.343
Coefficient of determination (R2)0.118

Suicide, age-standardized (per 100 000 population)
No. of data10
Regression equation
Y = -71.200345 X +20.555
Correlation coefficient (r)-0.193
Coefficient of determination (R2)0.037