Judith A. Muschla has taught mathematics in South River, New Jersey, for over twenty-five years. She has been a member of the state Standards Review Panel for the Mathematics Core Curriculum Content Standards in New Jersey.

Gary Robert Muschla taught at Appleby School in Spotswood, New Jersey, for more than twenty-five years. Judith and Gary have coauthored several books, including The Algebra Teacher's Activities Kit, Hands-On Math Projects with Real Life Applications, The Math Teacher's Book of Lists, and Math Starters.

Erin Muschla teaches 8th grade math and algebra at Monroe Township Middle School in Monroe, New Jersey, and has collaborated with Judith and Gary on three previous math books.