Miki (Mabelle) Murray is the coauthor or author of the popular Heinemann titles The Differentiated Math Classroom (2007) and Teaching Mathematics Vocabulary in Context (2004). In a thirty-five year career in mathematics education, she taught for more than twenty-five years, including time at Maine 's Center for Teaching and Learning, and was a professional development provider for another ten. Although now retired from the classroom, she continues to help teachers and students learn, love, and become literate in mathematics. She is a Heinemann Professional Development provider.