Jordan Ellenberg Jordan Ellenberg is a Professor of Mathematics at University of Wisconsin, and the 'Do the Math' columnist at Slate. He has lectured around the world on his research in number theory, and delivered one of the plenary addresses at the 2013 Joint Mathematics Meetings, the largest math conference in the world. His novel The Grasshopper King was shortlisted for the NYPL Young Lions Award, and he writes regularly for the New York Times Magazine, The Washington Post and Wired. A former two-time gold medalist at the International Mathematics Olympiad, Ellenberg learned algebra at the age of 8 and got a perfect score on his Math SATs (as a 12 year old).