Her research interests include teacher development, teacher educator development, mathematical knowledge for teaching teachers, and students’ out-of-school mathematics practice. She is or has been a principal investigator or co-principal investigator on approximately $5.9 million in grants, including six from the National Science Foundation and two from the United States Agency for International Development. Masingila has published widely in journals and books, and has developed a number of multimedia case studies examining issues in teaching practice. In 1998, she was a Fulbright Scholar to Kenyatta University in Nairobi, Kenya, and also spent fall 2011 on research leave there.
Masingila is active in policy and advocacy work for teacher and leader education. She is currently the president of the New York Association of Colleges for Teacher Education (NYACTE) and represents NYACTE on the Teacher Education Advisory Group, which meets monthly with New York State Commissioner of Education and President of the University of the State of New York MaryEllen Elia.