The percentage of students who find school boring may have less to do with the relative dullness of classroom instruction and/or teachers in a given country than with the degree to which students answering surveys feel free to give honest opinions.
However, since six of the top 10 countries in terms of students finding school boring are English-speaking, one could draw the conclusion that English-speaking people are easily bored, or that teachers in English-speaking countries are boring.
But a survey conducted by the U.K. Teacher Training Agency may hold the secret for that country, at least. Thirty percent of people entering the teaching profession are over 30. Nearly a quarter of the U.K.’s new math teachers who worked in a different profession before were either in banking or accountancy. One in six science teachers were either scientists or pharmacists. Fifteen percent of modern language teachers were previously in sales. (see http://education.guardian.co.uk/egweekly/story/0,5500,1402391,00.html)