The scatterplot shows the math scores of boys versus girls across 37 OECD countries, with each circle representing a country. The diagonal line separates countries where boys outperform girls from those where girls perform better. The visualization uses D3 v3 to load the CSV data, sort it by girls' scores, and render an SVG scatterplot with a linear scale for each axis. Hovering reveals a tooltip with the country name and both scores.