Carne Barnett-Clarke is the Director of the Mathematics Case Methods Project at WestEd, a nonprofit educational institution in Oakland, California. A former teacher in Bay Area public schools and teacher educator at the University of California, Berkeley, she is one of the pioneers of using cases as a professional development tool in mathematics education. She coedited Mathematics Teaching Cases: Fractions, Decimals, Ratios & Percents (Heinemann, 1994), a counterpart to this volume for upper elementary and middle school teachers.
