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Question: How often do these things happen in your mathematics lessons? - Students interrupt the teacher.
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 United States34.2%
2 Italy31.3%
3 Australia29.6%
4 Canada28.9%
5 Germany28.4%
6 United Kingdom25.7%
7 France 25.3%
8 Sweden21.2%
9 Republic of Korea12.2%
10 Japan5.9%

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 data10
Regression equation
Y = 2.535495 X +6.039
Correlation coefficient (r)0.545
Coefficient of determination (R2)0.297

GDP per capita (current US$)
No. of data10
Regression equation
Y = 101645.660504 X +24261.198
Correlation coefficient (r)0.627
Coefficient of determination (R2)0.393

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = -15.935806 X +85.868
Correlation coefficient (r)-0.616
Coefficient of determination (R2)0.379

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = 1.802657 X +1.041
Correlation coefficient (r)0.540
Coefficient of determination (R2)0.292

Suicide, age-standardized (per 100 000 population)
No. of data10
Regression equation
Y = -25.602553 X +17.314
Correlation coefficient (r)-0.495
Coefficient of determination (R2)0.245