Bonnie Ennis is coauthor of Introduction to Representation (Grades K–2 and 3–5), part of Heinemann’s Math Process Standards Series. A math teacher for twenty-three years, she is currently the coordinator for math instruction in the Wicomico County Public Schools. She is also an adjunct instructor at Salisbury University and a member of the Board of Directors for both the Maryland Council of Supervisors of Mathematics and the Maryland Council of Teachers of Mathematics.
