Honi J. Bamberger is coauthor of Math Misconceptions and Activities to Undo Math Misconceptions, as well as Introduction to Connections (PreK - 2, 3 - 5, and 6 - 8), part of Heinemann's Math Process Standards Series. She is a professor in the department of mathematics at Towson University. A former classroom teacher, she is a mathematics education researcher, the author of numerous other books and articles, and a nationally recognized speaker on math education.

Christine Oberdorf is coauthor of Introduction to Connections (PreK-2 and 3-5), part of Heinemann's Math Process Standards Series. She is a math content coach with Montgomery County Public Schools in Maryland. She is a board representative for the Maryland Council of Teachers of Mathematics and serves as a consultant for various districts and school systems.

Karren Shultz-Ferrell is coauthor of Introduction to Reasoning and Proof (Grades PreK - 2, 3 - 5, and 6 - 8), part of Heinemann's Math Process Standards Series. She is an elementary mathematics instructional specialist for Montgomery County Public Schools in Maryland and former classroom teacher. A board representative for the Maryland Council of Teachers of Mathematics, Karren consults with school systems and presents at state, regional, and national conferences.