The graph illustrates the average class size in six countries and compares it with the world average class size in 2006.
Overall, the most crowded classes in primary and lower secondary schools were in South Korea, whereas Iceland had the smallest class size of all.
Having more than 30 students in classrooms for both school types, South Korea was the leading figure in 2006, even though the average number of students in the world was 26 for primary schools and 24 for lower secondary. In contrast, Iceland had the minimum number of students in classes in the world, which was 15 for primary school children and 16 for lower secondary school children.
Similarly, Japan also had very crowded classes consisting of 26 children aged between 5 and 10 and 31 children aged 13–16 years old, which was the same as in Mexico’s lower secondary schools. Another similar figure can be seen between the UK and Denmark, which had 17–23 students, as did Mexico’s primary schools.
