The given bar graph provides information about the average class size in six countries-South Korea, Japan, England, Denmark, Mexico, and Iceland- and compares it with the world average class size in 2006.
The most striking feature in the bar graph is that secondary school classes were generally larger than primary classes in most countries. South Korea had the highest average class size, whereas Iceland experienced the smallest figures.
In secondary school, South Korea had the largest classes, with approximately 35 students per class. Japan and Mexico followed, each with around 30 students. In contrast, England had about 22 students per class, while Denmark recorded roughly 19. Iceland had the smallest secondary class size, at just over 12 students.
A similar pattern seen in the primary education, South Korea again had the highest average, at around 34 students per class, followed by Japan with 27. The world average stood at approximately 25 students. England, Mexico, and Denmark had similar figures of about 21 students per class, whereas Iceland had the lowest average, at roughly 15.