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Question: How often do these things happen in your mathematics lessons? - My teacher has to wait a long time for students to quiet down.
Choices: "Every or almost every lesson" "About half the lessons" "Some lessons" "Never"
Data: % of "Every or almost every lesson"
Period:
Area:
10 countries/ areas
Highlight:
1 Italy37.7%
2 France34.7%
3 United States34.0%
4 Germany 33.1%
5 United Kingdom30.0%
6 Canada29.8%
10 Japan11.9%

Note
Belgium: The Flemish Community only. United Kingdom: England only.

Source
TIMSS 2019 > International Database > TIMSS 2019 Data Almanacs - Grade 4

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data7
Regression equation
Y = 1.961066 X +5.992
Correlation coefficient (r)0.573
Coefficient of determination (R2)0.328

GDP per capita (current US$)
No. of data7
Regression equation
Y = 73156.617473 X +28661.746
Correlation coefficient (r)0.403
Coefficient of determination (R2)0.162

Life expectancy at birth - Both sexes (years)
No. of data7
Regression equation
Y = -11.517770 X +84.989
Correlation coefficient (r)-0.466
Coefficient of determination (R2)0.217

Fertility rate, total (births per woman)
No. of data7
Regression equation
Y = 0.995745 X +1.174
Correlation coefficient (r)0.400
Coefficient of determination (R2)0.160

Suicide, age-standardized (per 100 000 population)
No. of data7
Regression equation
Y = -16.709317 X +14.501
Correlation coefficient (r)-0.421
Coefficient of determination (R2)0.177