Muschla received her B.A. in Mathematics from Douglass College at Rutgers University and is certified K-12. She has taught mathematics in South River, New Jersey for the last 25 years. At South River High School she has taught math at various levels, ranging from basic skills through Algebra II. She has alto taught at South River Middle School. While there, in her capacity as a Team Leader, she hepled revise the mathematics curriculum to reflect the standards of the NCTM, coordinated interdisciplinary units, and conducted mathematics workshops for teacher and parents. She was recipient of the 1990-91 Governor's Teacher Recognition Program in New Jersey.
Erin Muschla-Berry is a middle school math teacher in New Jersey and has written extensively for teachers, including "Practice Makes Perfect: Fractions, Decimals, and Percents".