Americans spend a lot of time in school, but according to a report from the Organization for Economic Cooperation and Development, many are lacking basic skills.
When it comes to literacy, the United States came in ninth out of 13 industrialized countries surveyed.
In problem solving, Americans ranked eighth. The report also found Americans are also bad at math, coming in third from last in numeracy rankings.
This study comes despite the fact that the number of years Americans are expected to spend in school is more than our counterparts in the UK and Japan. One reason given for this poor performance is immigration.
Analysts say, immigrants tend to have fewer skills and that can bring down the average score.