Sarah-Marie Belcastro (aka sarah-marie belcastro,[1] born 1970) is an American mathematician and book author. She is an instructor at the Art of Problem Solving Online School[2] and is the director of MathILy,[3] a residential math summer program hosted at Bryn Mawr. Although her doctoral research was in algebraic geometry, she has also worked extensively in topological graph theory.[4] She is known for and has written extensively about mathematical knitting, and has co-edited three books on fiber mathematics.[5] She herself exclusively uses the form "sarah-marie belcastro".[6][1]
Since 2012, she has also been an instructor at the Art of Problem Solving Online School.[2] Since 2013, she has been the director of Bryn Mawr College's residential summer program MathILy (serious Mathematics Infused with Levity).[3] She is also a guest faculty member at Sarah Lawrence College.
^"From the colleges"(PDF). Newsletter of the Northeastern Section of the MAA. Vol. 23, no. 2. Fall 2001. pp. 16–18. sarah-marie belcastro (she prefers the lower case spelling of her name) joined the Bowdoin Math Department this fall as a Visiting Assistant Professor of Mathematics