Anna O. GraeberAnna O. Graeber is Associate Professor Emerita in the Department of Curriculum and Instruction at the University of Maryland, with her doctorate in mathematics education from Teachers College, Columbia University. Prior to teaching at the Univrsity of Maryland, she served in various mathematics curriculum and staff development positions at Research for Better Schools, a regional educational laboratory in Philadelphia. She is best known for her research on students' misconceptions in mathematics. Read More Read Less