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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 explain what assumptions we were making when solving a mathematics problem.
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:
80 countries/ areas
Highlight:
1 Kazakhstan50.4%
2 Denmark49.3%
3 Jamaica48.7%
4 Peru48.6%
5 Japan48.1%
6 Azerbaijan48.0%
7 Viet Nam47.5%
8 Greece47.3%
9 Portugal47.2%
10 Austria47.1%
11 Georgia46.9%
12 Ukraine46.7%
13 Germany45.8%
14 Uzbekistan45.7%
15 Dominican Republic45.6%
16 Philippines43.8%
17 Bulgaria43.6%
18 Albania43.5%
18 Mexico43.5%
20 Colombia43.2%
21 Guatemala 42.6%
21 United Arab Emirates42.6%
23 Sweden42.5%
24 Latvia42.0%
25 Malta41.7%
25 Qatar41.7%
27 Italy40.7%
28 France40.2%
29 Chile40.1%
30 Hungary39.4%
31 Norway39.1%
32 Switzerland39.0%
33 Serbia38.9%
34 Australia38.7%
35 Panama38.4%
36 United States38.3%
37 Ireland38.1%
38 Brunei Darussalam38.0%
39 El Salvador37.8%
40 Argentina37.5%
41 Singapore36.6%
42 Canada36.5%
43 Turkiye36.0%
44 Costa Rica35.9%
44 Israel35.9%
46 Lithuania35.6%
46 Moldova35.6%
48 Spain35.4%
48 Uruguay35.4%
50 Mongolia35.3%
50 United Kingdom35.3%
52 Belgium35.1%
53 North Macedonia35.0%
54 Hong Kong, China34.9%
55 Croatia34.6%
55 New Zealand34.6%
57 Slovakia34.4%
58 Poland34.2%
59 Montenegro34.0%
60 Czech Republic33.8%
61 Morocco33.1%
62 Brazil32.9%
63 Macao, China32.8%
64 Saudi Arabia32.2%
65 Cambodia31.9%
65 Romania31.9%
67 Malaysia31.7%
68 Paraguay31.2%
69 Indonesia31.0%
70 Kosovo30.4%
71 Taiwan30.3%
72 Thailand29.4%
73 Slovenia28.9%
74 Estonia28.7%
75 Netherlands28.6%
76 Palestinian Territory27.4%
77 Jordan25.5%
78 Republic of Korea25.3%
79 Finland23.6%
80 Iceland21.8%

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 158 countries.

Source
OECD PISA 2022

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data77
Regression equation
Y = -0.855310 X +6.563
Correlation coefficient (r)-0.078
Coefficient of determination (R2)0.006

GDP per capita (current US$)
No. of data80
Regression equation
Y = -29498.483233 X +41343.609
Correlation coefficient (r)-0.075
Coefficient of determination (R2)0.006

Life expectancy at birth - Both sexes (years)
No. of data79
Regression equation
Y = -9.472468 X +81.145
Correlation coefficient (r)-0.141
Coefficient of determination (R2)0.020

Fertility rate, total (births per woman)
No. of data79
Regression equation
Y = 0.249562 X +1.640
Correlation coefficient (r)0.031
Coefficient of determination (R2)0.001

Suicide, age-standardized (per 100 000 population)
No. of data75
Regression equation
Y = -13.184997 X +13.705
Correlation coefficient (r)-0.190
Coefficient of determination (R2)0.036