James Tanton (PhD, Princeton 1994, mathematics) is an author, a consultant, and an ambassador for the Mathematical Association of America in Washington D.C., currently serving as their Mathematician-at-Large. He has taught mathematics both at university and high-school institutions. James is absolutely committed to promoting effective and joyful mathematics thinking, learning, and doing at all levels of the education spectrum.
James has written a number of books, including THE ENCYCLOPEDIA OF MATHEMATICS (Facts on File, 2005) and two wordless puzzle books WITHOUT WORDS and MORE WITHOUT WORDS (Tarquin, 2015) -- which have each been translated in Serbian -- and developed two DVD Great Courses (The teaching Company, 2013 and 2016). He advises on curriculum, consults with teachers, and gives demonstration classes and professional development across the globe. James also leads the MAA’s Curriculum Inspirations project, www.maa.org/ci and is founder of The Global Math Project,www.theglobalmathproject.org. See his sites www.jamestanton.com and www.gdaymath.com for more.