Guy Barmoha is director of the Department of the Mathematics, Science, & Gifted Department at Broward County Public Schools, Florida. Previously, he was an elementary mathematics curriculum supervisor.
Melissa R. Carli is a curriculum program specialist for Lake County Schools in Florida. She has taught at the elementary and middle school levels and served as both a mathematics coach and department chair.
Craig Cullen, PhD, is an associate professor of mathematics education at Illinois State University. He works with preservice secondary mathematics teachers, regularly teaching methods courses and supervising student teachers.
Lakesia L. Dupree is a mathematics instructional coach, with experience teaching at the elementary level. She specializes in helping teachers integrate research-based practices into their mathematics instruction.
Jennifer Eli, PhD, is an associate professor of mathematics education at the University of Arizona. She has taught a variety of courses and facilitated professional development workshops for K–12 teachers.