Margarita Calderón, PhD, is professor emerita and senior research scientist at the Johns Hopkins University School of Education. She has conducted research, training, and curriculum development for teaching language, reading comprehension, and content knowledge to K-12 English learners. Her work has focused on effective instructional processes, two-way and dual-language programs, teacher learning communities, and professional development for schools with language minority populations and striving adolescent readers. Dr. Calderón's research has been supported by the New York Carnegie Corporation Foundation, US Department of Education, US Department of Labor, National Institutes of Health, and the Texas Education Agency.

A native of Juárez, Mexico, Dr. Calderón is a recognized expert in education with more than 100 publications to her credit. She is a respected member of several panels and national committees, and she has been welcomed internationally as a visiting lecturer. Dr. Calderón has created and directed her own international institutes for administrators, teachers, and parents. She has experience as a classroom teacher, bilingual program director, professional development coordinator, professor of educational leadership graduate programs, and teacher supervisor.