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.

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 the Thomas More Brennan Chair in Education in the Lynch School of Education at Boston College. He has taught primary school and lectured in several English universities, including Oxford.

Orinthia Harris, PhD, has extensive experience in classroom and extracurricular settings. She is the founder of STEMearly LLC, an organization dedicated to reigniting teaching passions so educators and students can thrive.

Dr. Daman Harris is an award-winning education leader focused on equity, instructional leadership, student advancement, and educator development.

Amanda Hathhorn, district math specialist and mentor for the Aspiring Instructional Coaching Academy at Pasadena ISD, has over 20 years of experience in education. Notably, she played a pivotal role in successfully implementing the Professional Learning Communities (PLC) at Work® process and subsequently earning a Model PLC at Work school distinction at V. W. Miller Intermediate.

Peter Hayes is the former director of Solution Tree Australia and the Asia Pacific Region. Previously he was the national director of education for the Australian Council for Education.