Finland's school system has consistently come at the top for the international rankings for education systems. So how do they do it? It's simple " by going against the evaluation-driven, centralized model that much of the Western world uses. Finnish children don't start school until they are 7. Compared with other systems, they rarely take exams or do homework until they are well into their teens. The children are not measured at all for the first six years of their education. There is only one mandatory standardized test in Finland, taken when children are 16. All children, clever or not, are taught in the same classrooms. Finland spends around 30 percent less per student than the United States. 30 percent of children receive extra help during their first nine years of school. 66 percent of students go to college. The difference between weakest and strongest students is the smallest in the World. Science classes are capped at 16 students so that they may perform practical experiments every class. 93 percent of Finns graduate from high school. 17.5 percent higher than the US. Elementary school students get 75 minutes of recess a day in Finnish [schools] versus an average of 27 minutes in the US. Teachers only spend 4 hours a day in the classroom, and take 2 hours a week for "professional development". Teachers are effectively given the same status as doctors and lawyers. In an international standardized measurement in 2001, Finnish children came top or very close to the top for science, reading and mathematics.