Authors & Presenters

Bill Hall is the former director of educational leadership and professional development for Brevard Public Schools in Florida. He has served as a classroom teacher, assistant principal, and principal.

Rachel Hankerson is currently the principal of Yulupa Elementary School. Rachel has emphasized the importance of working as a team to ensure continuous improvement through professional learning communities, and as a leader, she is able to break down large concepts into manageable chunks, ensuring that her staff feels confident.

Angela Hanlin is a passionate leader committed to driving change in schools and classrooms. Under her guidance, Matthews Elementary achieved remarkable success, reaching a 100 percent proficiency level.

John Hannigan, EdD, is an author and speaker who has served in education for over 20 years as a teacher, instructional coach, principal, and county office leadership coach. His expertise includes RTI at Work™, PLC at Work®, MTSS, PBIS, restorative practices, social-emotional learning, and more.

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.

Aaron Hansen is an expert in Professional Learning Communities (PLC), Response to Intervention (RTI) and student empowerment. He is a highly sought-after international speaker, strategic consultant, coach, and author.

Chris Hansen has been a teacher, principal, and a director of technology and learning in his more than 30 years of education and international experience. Currently, he works as a Solution Tree associate throughout the United States, where his passion is implementing and refining professional learning communities.

Nathaniel Hansford has taught every grade from preK to 12 in many interesting and diverse locations—from South Korea to the subarctic of Quebec. He specializes in using meta-analysis research to help teachers implement proven methodologies.

Dr. Patrick B. Hardy is the current principal at Hinsdale South High School in Illinois and has enjoyed a distinguished 26-year career in education. Notably, Dr. Hardy was principal at Proviso East High School in Maywood, Illinois, which became the first certified Marzano Academy in the nation. Dr. Hardy’s work has focused on school transformation and innovation, leadership development and coaching, equitable education, and personalized competency-based education.

Andy Hargreaves, PhD, is an emeritus professor at Boston College and holds visiting or honorary professorships at the University of Ottawa, Hong Kong University, the University of Stavanger, and Swansea University.