Authors & Presenters

Thomas R. Guskey, PhD, is senior research scholar at the University of Louisville and professor emeritus in the College of Education at the University of Kentucky. A graduate of the University of Chicago, he began his career in education as a middle school teacher and later served as a school administrator in the Chicago Public Schools.

Floyd Gómez-Starnes is an educational speaker providing training in literacy, dual language education, and school improvement. His career spans over 30 years and includes classroom teaching, developmental coaching, and literacy.

Erhan Selcuk Haciomeroglu, PhD, is an associate professor of mathematics education at the University of Central Florida. His research focuses on the conceptual understanding of calculus and technology integration in teaching.

Mike Hagadone, MEd, served as the assistant superintendent of White River School District in Washington State until his retirement in 2020. With 40 years of experience, he is a former teacher, assistant principal, principal, and director of secondary education.

Valerie Hairston is principal of Specialist Rafael Hernando III Middle School in El Paso, Texas. With 18 years of experience, she led her school to implement the professional learning community process, establish a collaborative culture, and improve student achievement.

Kourtney Hake is an English teacher at Sparta Lincoln School in Sparta, Illinois. She is also a member of the National Council for Teachers of English (NCTE), the Illinois Reading Council (IRC), and the Illinois Association of Teachers of English (IATE) since 2014.

Katie Kreimer Hall, EdD, is the supervisor of curriculum and professional development for Fort Smith Public Schools. Previously an administrator in high-poverty schools, she is passionate about building self-efficacy in teachers through the professional learning community process to increase student achievement.

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.