William (Bill) Crombie
Director of Professional Development
The Algebra Project
William (Bill) Crombie is the Director of Professional Development for The Algebra Project, Inc. Since 1990 Bill has been involved in the development and delivery of professional development for teachers and the professional development of professional developers within the Algebra Project’s national network. In collaboration with Bob Moses, the founder of the Algebra Project, Bill has worked on the development of the Transition Curriculum, short curriculum modules, and the African Drum and Ratios Curriculum. He is also the principal author of the Train-the-Trainer’s Transition Curriculum Practice Units and Lecture Notes and the principal developer of the Accessible Calculus Curriculum. Bill has worked as a site development consultant to a number of school systems and communities across the nation in their efforts to establish local algebra projects: Boston, Cambridge, Chicago, North Chicago, Louisville, Los Angeles, Milwaukee, Marlboro County, SC, Plainfield, NJ, and New York City. From 1994 to 1998 he was the director of the Chicago Algebra Project. Overall, his work has focused on increasing access to quality mathematics education for students from underserved communities.