Sandra Dean

  • B.S. (economics), MEd (math education), EdD (Education Leadership)

  • Head of The Philadelphia School 1983-2006

  • Interim Head of Lower School Friends Select School 2015-16

  • 20 years teaching public and independent schools (preK-grade 11)

  • Author: Beyond Civics: The Education Democracy Needs

Photo of Sandra Dean

Co-Founders

photo of Janet Weinstein

Janet Weinstein

  • B.A (social sciences), Certif. (elementary education), M.A (Education and Child Development)

  • 35 years teaching in independent schools (preK-grade 2)

  • Math tutor using m*sense/Making Math Real (2013-present)

  • Author: Count and Share with Teddy—an Interactive Number Book (coming Fall 2025)