Authors & Presenters

Chris Beingessner is deputy principal of the middle school at Singapore American School. Throughout the past 17 years, he has held numerous K–12 teaching and school leadership roles

Bryce Amos, EdS, is superintendent of the Carlisle Community School District in Iowa. He has been an educator for more than 20 years, also serving as executive director, principal, and teacher.

Heather Anderson is a teacher at Health Sciences High and Middle College in California. She teaches English, mental health, and upper-division Spanish courses.

Janet Andreasen, PhD, is an associate lecturer of mathematics education at the University of Central Florida. She is also coordinator of secondary education and works with K–12 mathematics teachers.

Jason A. Andrews, EdD is the superintendent of Windsor Central School District and the 2019 Superintendent of the Year. Previously, he served as a high school teacher, coach, cocurricular adviser, and middle school principal.

Dr. Angelou currently serves the community in Wittmann, Arizona, as superintendent. Dr. Angelou was named Oklahoma High School Principal of the Year in 2017 for the academic gains made by her students during her tenure in Oklahoma City.

Gynelle Gaskell is an instructional coach and consultant. She works with schools to improve mathematics instruction and build teacher leadership capacity through professional development and coaching.

Daniel M. Argentar is a literacy coach and communication arts teacher at Adlai E. Stevenson High School in Lincolnshire, Illinois. He works with instructors from all divisions to increase disciplinary literacy for students.

Toby Arritola is the principal at Mountain Vista Elementary School in Aurora, Colorado. With more than 20 years of experience as an educator, Toby specializes in and advocates for developing PLCs and a healthy school culture.

Justin Baeder is director of The Principal Center, where he helps school and district administrators build capacity for instructional leadership. Driven by the belief that leaders belong in classrooms—where the most important work is being done—he created the 21-Day Instructional Leadership Challenge, which has helped more than 10,000 leaders from 50 countries develop the habit of getting into classrooms and having evidence-based conversations with teachers.