Here. An excerpt:
Buried under the headlines of the last week about the newly released Program for International Student Assessment results — which showed American 15-year-old students nowhere near the top on the 2012 math, reading and science tests, is an interesting bit of data. It’s the connection between early childhood education and the top-performing PISA nations.
PISA is given by an organization called the Organization for Economic Cooperation and Development, which is made up of 34 countries, including the United States, China, Germany and Japan. In the majority of OECD countries, more than three quarters (79%) of 4-year olds are enrolled in early childhood education programs. And according to the report on 2012 PISA scores released last week, across OECD countries, students who attended early childhood programs performed better—a full year ahead of their peers.
Here is a NYT’s article on the PISA results, warning that the Western nations are falling behind.