Sarah-Marie Belcastro

Sarah-Marie Belcastro is a Research Associate at Bryn Mawr College and an instructor at the Art of Problem Solving. She is also the Director of MathILy, a summer program focused on immersive mathematical education.

• Bryn Mawr College: Research Associate
• Art of Problem Solving: Instructor
• MathILy: Director

Her research spans multiple disciplines, including topological graph theory, combinatorial geometry, algebraic geometry, and topology. She is particularly known for her innovative work connecting mathematics to fiber arts like knitting and sewing, as well as applications in pharmacokinetics and integer programming. Her exploration of the geometry of paperfolding highlights her interdisciplinary approach.

Beyond research, Belcastro is deeply committed to pedagogy. She advocates for active learning, collaborative problem-solving, and student-driven conjectures. Her teaching philosophy emphasizes conceptual understanding over rote memorization, often using inquiry-based methods and role rotation in group homework to enhance student engagement and technical writing skills.