Authors & Presenters

Catherine M. Thompson, EdS, is the principal of Marco Forster Middle School, located in San Juan Capistrano, California. She specializes in the implementation of professional learning communities (PLC) and is a passionate advocate for meeting the diverse learning needs of every student.

Following his time as a classroom teacher, Brian Thorne worked as a high school assistant principal, an elementary principal, and a middle school principal. He is currently the principal of Rocky Mountain Middle School in Heber City, Utah.

Jennifer Throndsen, PhD, is an education advisor and former director of teaching and learning for the Utah State Board of Education. With over 20 years of experience, she has served as a teacher, district office specialist, instructional coach, and state literacy coordinator.

Cheryl Tibbals served as a teacher and district leader in California; state director of assessment development in Kentucky; director of the State Leadership Center in Washington, DC; and national consultant and senior advisor to states, districts, and education businesses.

Kara Tidemann has successfully served for over 25 years in education. As a building leader she successfully led an underperforming school to high performance, earning Model PLC at Work® school status for demonstration of exceptional academic achievement over time.

Paige Timmerman is a high school English teacher at Salem Community High School in Salem, Illinois and a National Board Certified Teacher member since 2019. She strives to provide authentic, real-world writing opportunities that meet her students’ skills and interests.

Jennifer Tobias, PhD, is an associate professor at Illinois State University. She specializes in elementary mathematics with emphasis on preparing prospective elementary teachers and developing their understanding of mathematics.

Amy Tollefson is the district-level principal with Osseo Area Schools in a diverse suburb of Minneapolis. Over more than 20 years, she has also served as a secondary school principal, secondary social studies teacher, district office coordinator, and assistant principal.

Carol Ann Tomlinson, EdD, is an author, a consultant, a trainer, and a presenter who works throughout the United States and abroad with teachers to develop more responsive, heterogeneous classrooms.

Mona Toncheff, an educational presenter and author, has over 30 years of experience in public education. Mona works with educators and leaders nationwide to build collaborative teams and ensure all students receive high-quality mathematics instruction.