Authors & Presenters

Jessica Djabrayan Hannigan, EdD, works with US schools and districts to design and implement effective social-emotional and behavioral systems. Her expertise includes RTI, PLCs, MTSS, PBIS, restorative practices, social-emotional learning, and more.

Tammy Heflebower, EdD, is a highly sought-after school leader and presenter with vast experience in urban, rural, and suburban districts throughout the United States, Australia, Canada, Denmark, Great Britain, and the Netherlands.

Tom Hierck has been an educator since 1983 in a career that has spanned all grade levels. He has been a teacher, an administrator, a district leader, a department of education project leader, and an executive director.

Yvette Jackson, EdD, is a former teacher who served New York City Public Schools as director of gifted programs and executive director of instructional and professional development.

Alex Kajitani holds the title of California Teacher of the Year and has been a top-four finalist for National Teacher of the Year. He is a highly sought-after speaker and a top authority on engagement, building relationships, and teacher leadership.

Jennifer A. Lenhardt, MEd, is a senior manager for professional services with Houghton Mifflin Harcourt, where she integrates her experience as a teacher and her research interest into equity and culturally responsive teaching with the professional learning she creates.

Ann-Bailey Lipsett is a special education specialist and DIR/Floortime practitioner with twenty years of experience working with children, families, and schools.

Mandy E. Lusk, PhD, is a lifelong special education practitioner who serves as an associate professor of special education at Clayton State University and has taught students of all ages with emotional and behavioral disorders across the United States.

Robert J. Marzano, PhD, is cofounder and chief academic officer of Marzano Resources in Denver, Colorado. A leading researcher in education, he is a speaker, trainer, and author of more than 50 books and 200 articles.

Christine Mason, PhD, is the founder and executive director of the Center for Educational Improvement, an assistant clinical professor of psychology at Yale University, and the co-principal investigator of the Compassionate School Leadership Academy.