Roselyn Teukolsky has an M.S. degree from Cornell University, and has been teaching programming and computer science since 1980. She has published articles in The Mathematics Teacher and in the National Council of Teachers of Mathematics Yearbook. She is the author of Barron's ACT Math and Science Workbook and co-author of Barron's SAT 1600: Aiming for the Perfect Score. She has received the Edyth May Sliffe Award for Distinguished Mathematics Teaching and the Alfred Kalfus Distinguished Coach Award from the New York State Math League (NYSML).