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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:
76 countries/ areas
Highlight:
1 Peru64.1%
2 Uzbekistan61.7%
3 Dominican Republic60.1%
4 Colombia59.7%
5 Jamaica58.3%
5 Panama58.3%
7 Albania58.2%
8 El Salvador57.6%
8 Mexico57.6%
10 Kazakhstan57.0%
11 Azerbaijan56.6%
12 Costa Rica56.4%
13 Singapore56.0%
14 Georgia54.4%
15 United Arab Emirates53.7%
16 Philippines53.0%
17 Portugal52.7%
18 Chile50.8%
19 Qatar50.2%
20 North Macedonia49.9%
21 Brazil49.2%
22 United States48.9%
23 Canada48.7%
24 Saudi Arabia48.6%
25 Australia48.3%
25 Kosovo48.3%
27 Argentina48.2%
28 Indonesia46.7%
28 Morocco46.7%
30 Brunei Darussalam46.6%
31 Malaysia46.0%
32 Spain45.2%
33 United Kingdom45.0%
34 Malta44.6%
35 Montenegro44.5%
36 Israel44.4%
37 Palestinian Territory44.1%
38 Bulgaria43.9%
38 Macao, China43.9%
40 Moldova43.4%
41 Serbia43.1%
42 Ireland42.9%
43 Turkiye42.7%
44 Austria42.4%
45 Ukraine42.1%
46 New Zealand42.0%
47 Hong Kong, China41.6%
48 Greece41.4%
49 France41.2%
50 Croatia41.0%
50 Slovakia41.0%
52 Jordan40.7%
52 Mongolia40.7%
54 Switzerland40.6%
55 Uruguay40.4%
56 Lithuania40.0%
57 Sweden38.8%
58 Italy38.6%
59 Romania38.2%
60 Latvia38.1%
61 Republic of Korea38.0%
62 Hungary37.8%
62 Thailand37.8%
64 Taiwan37.1%
65 Germany35.9%
66 Poland35.3%
67 Belgium35.1%
68 Japan 34.3%
69 Denmark33.9%
70 Norway33.1%
71 Estonia32.9%
72 Iceland32.8%
73 Slovenia32.6%
74 Czech Republic32.2%
75 Finland30.1%
76 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 162 countries.

Source
OECD PISA 2022

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data73
Regression equation
Y = -2.808136 X +7.533
Correlation coefficient (r)-0.331
Coefficient of determination (R2)0.110

GDP per capita (current US$)
No. of data75
Regression equation
Y = -109739.718203 X +79498.398
Correlation coefficient (r)-0.357
Coefficient of determination (R2)0.127

Life expectancy at birth - Both sexes (years)
No. of data75
Regression equation
Y = -26.350240 X +88.991
Correlation coefficient (r)-0.452
Coefficient of determination (R2)0.204

Fertility rate, total (births per woman)
No. of data75
Regression equation
Y = 1.742904 X +0.959
Correlation coefficient (r)0.276
Coefficient of determination (R2)0.076

Suicide, age-standardized (per 100 000 population)
No. of data71
Regression equation
Y = -24.006440 X +19.633
Correlation coefficient (r)-0.442
Coefficient of determination (R2)0.195