The link between early childhood education and PISA scores

"The answer is clear: a serious focus on the education and health of children from birth to age 5, particularly those from disadvantaged backgrounds, can lay the foundation for achievement in school, college, career and life."
"PISA (Program for International Student Assessment) 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. "

December 2013, The Washington Post