John A. Pelesko is an applied mathematician and educator at the University of Delaware. With over 20 years of experience doing and teaching the art of mathematical modeling, he brings the perspective of the practitioner to these pages.
Michelle Cirillo is a mathematics education researcher and educator at the University of Delaware. With over 20 years of experience as a high school classroom teacher, a mathematics education researcher, and as a teacher-educator, she brings the perspective of the K-12 educator to these pages.