Marilyn Ornstein has been teaching almost continuously since she received her bachelor's in early childhood education from Queens College of the City University of New York in 1963. Before coming to North Carolina in 1973, she taught second grade in New York, second and third grade in Wisconsin, and preschool in New Jersey. After teaching for five years in a Durham preschool, Marilyn joined Duke School’s faculty in 1981. In 2011, Marilyn retired from the classroom at Duke School, but has continued as a consultant at the school, working primarily on project work with teachers in preschool and kindergarten. She also consults and presents workshops on a variety of topics, including using the Project Approach with young children.