Today’s bubble chart illustrates the relationship between annual education spending and science and math test scores for 12 countries. Here, the x-axis represents math test scores; the y-axis represents science test scores; and the bubble radius represents annual education spending per child. This first chart (above) uses a zoom-box to expand the view of the 10 countries clustered in the upper right quadrant, with Finland having the highest test score results in both math and science. The United States has the lowest math test scores and the second lowest science test scores (Russia has the lowest) among these 10 countries, but spends almost $2,000 more per child annually than any other country. The bubble chart of all twelve countries (below) illustrates how Brazil and Mexico are far behind these ten countries in both test scores and have very low annual spending. Source data:U.S. Education Spending and Performance vs. The World