Tatiana Ciccarelli is a senior professional learning consultant at HMH. A native New Yorker, Tatiana has spent the majority of her career as a teacher leader for the New York City Department of Education. Her areas of focus are mathematics and special education. She believes intentional, informed differentiation, an unending curiosity for one’s students, and a strong data culture are the keys to success. Tatiana holds a BS in science, letters, and society and an MSEd in special education from the City University of New York, where she was also a graduate professor of special education.