William G. McCallum

Bill McCallum has dedicated his life to helping teachers, educators, mathematicians, and policymakers show fidelity to both mathematical coherence and student learning.

He is an Emeritus Distinguished Professor of Mathematics at The University of Arizona, where he researches number theory and arithmetical algebraic geometry, authors textbooks, and advises researchers and policymakers. Bill’s work as a lead writer of the Common Core State Standards in Mathematics earned him the Distinguished Public Service Award from the American Mathematical Society and the Dolciani Award from the Mathematical Association of America.

As President, co-founder, and CEO of Illustrative Mathematics, he chairs the Board of Directors where he helps craft the strategic direction of the organization and contributes to the curricula. He also represents IM to funders, at speaking events, and in workshops.