AP® Calculus AB

Instructor

Debbie Preston Deborah B. Preston Rice University and received her BS in mathematics from UTSA, and her Master of Arts degree in mathematics from the University of the Incarnate Word. She has been teaching for 36 years, 31 of which have been in AP and Pre-AP mathematics classes at Keystone School, where she chairs the Upper School Mathematics Department.  A member of the National Council of Teachers of Mathematics, she co-authored the Instructor's Guide to accompany Paul A. Foerster's Calculus: Concepts and Applications. For 12 years, she and Mr.