MAA Convergence is the Mathematical Association of America’s refereed online journal about the history of mathematics and its use in teaching. Articles in Convergence address how the historical topics they discuss have been—or could be—employed in a mathematics classroom. Aimed at mathematics instructors at both the secondary and collegiate levels, MAA Convergence includes topics from grades 8–16 mathematics (with special emphasis on topics from grades 8–14): algebra, combinatorics, synthetic and analytic geometry, trigonometry, probability and statistics, elementary functions, calculus, differential equations, and linear algebra.