Mary Pinkston has been an educator for more than 20 years in the Brandywine School District. She has taught at all three of the district's high schools, including Mount Pleasant and Concord. For the past 18 years, she has taught mathematics at Brandywine High.
Pinkston teaches a richly diverse group of young people in grades 9–12. The courses she currently teaches are algebra, honors calculus and honors precalculus, and she co-teaches one section each of algebra and conceptual algebra.
While conducting weekly afterschool help sessions for her students, Pinkston is able to assess student misconceptions and intervene immediately. She communicates regularly with parents via email. She also works with colleagues in professional learning communities and numerous professional organizations.
Pinkston has represented her students and colleagues at the state level since serving as the 2010 Delaware State Teacher of the Year. She was also chair of the 18th annual Teacher Forum (Global Competency), attended by several local and state officials.
She is certified as a secondary mathematics teacher and is a National Board Certified Teacher in adolescent and young adult education.