Tweet
Question: This school year, how often did your teacher do the following things in your mathematics lessons? - The teacher showed us how some problems that look difficult can be solved more easily by understanding how the number system is organized.
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:
37 countries/ areas
Highlight:
1 Colombia59.7%
2 Mexico57.6%
3 Costa Rica56.4%
4 Portugal52.7%
5 Chile50.8%
6 United States48.9%
7 Canada48.7%
8 Australia48.3%
9 Spain45.2%
10 United Kingdom45.0%
11 Israel44.4%
12 Ireland42.9%
13 Turkiye42.7%
14 Austria42.4%
15 New Zealand42.0%
16 Greece41.4%
17 France41.2%
18 Slovakia 41.0%
19 Switzerland40.6%
20 Lithuania40.0%
21 Sweden38.8%
22 Italy38.6%
23 Latvia38.1%
24 Republic of Korea38.0%
25 Hungary37.8%
26 Germany35.9%
27 Poland35.3%
28 Belgium35.1%
29 Japan34.3%
30 Denmark33.9%
31 Norway33.1%
32 Estonia32.9%
33 Iceland32.8%
34 Slovenia32.6%
35 Czech Republic32.2%
36 Finland30.1%
37 Netherlands29.9%

Note
The data of Azerbaijan are collected only in Baku. The data of Ukraine are collected from 18 out of 27 regions.

No data for 1 countries.

Source
OECD PISA 2022

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data37
Regression equation
Y = -2.306711 X +7.622
Correlation coefficient (r)-0.309
Coefficient of determination (R2)0.095

GDP per capita (current US$)
No. of data37
Regression equation
Y = -97405.321289 X +82420.869
Correlation coefficient (r)-0.292
Coefficient of determination (R2)0.085

Life expectancy at birth - Both sexes (years)
No. of data37
Regression equation
Y = -16.766933 X +86.670
Correlation coefficient (r)-0.344
Coefficient of determination (R2)0.118

Fertility rate, total (births per woman)
No. of data37
Regression equation
Y = 0.408579 X +1.425
Correlation coefficient (r)0.099
Coefficient of determination (R2)0.010

Suicide, age-standardized (per 100 000 population)
No. of data37
Regression equation
Y = -21.098456 X +18.568
Correlation coefficient (r)-0.390
Coefficient of determination (R2)0.152