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.

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.

Aaron Hansen is a nationally recognized presenter, author and coach who empowers teachers and leaders to transform their schools.

Chris Hansen is director of curriculum in the Hortonville (Wisconsin) Area School District, assisting in the implementation and refinement of professional learning communities. He has served as a teacher, director of technology, and director of learning.

Sascha Heckmann is the director of the American International School of Mozambique. Previously, he served as the high school principal at Shanghai American School, as well as a principal and vice-principal at several districts in California.

Jacqueline Heller focuses on building capacity and collective efficacy with teachers, to ensure all students learn at high levels. As a literacy teacher and coach at Mason Crest Elementary, she helped the school become the first National Model Professional Learning Community to receive the DuFour Award.

Allana Hemenway, EdD, is the principal at Randolph Elementary School in Texas. She has more than 20 years of experience teaching at the elementary, middle, and high school levels, in both the United States and Canada.

Mary Hendricks-Harris is the superintendent of the Francis Howell School District in Missouri. Previously, she served as the chief academic officer, in which role she supported improvement efforts at both the building and district levels.

Sal Herrera, EdM, is the principal at Robertson Continuation High School in Fremont, California. He specializes in coaching collaborative teams, designing an effective MTSS, and building a culture of collective responsibility.

Russell Hill is superintendent of the East Valley School District. With more than 20 years of education experience, he has served as both teacher and administrator at the elementary, middle, and high school levels.