Kimberly Witeck is coauthor of Introduction to Representation (Grades PreK–2 and 3–5), part of Heinemann’s Math Process Standards Series. A former elementary teacher and peer instructional coach, she is a Title I Math Teacher in Fairfax County Public Schools in Virginia. She conducts parent education workshops and professional staff development, presenting at workshops and conferences. She lives in Arlington, Virginia, with her husband and two children.