Authors & Presenters

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.

Matt Townsley, EdD, is an associate professor of educational leadership at the University of Northern Iowa in Cedar Falls, Iowa. He is a former district administrator and teacher in Solon Community Schools, also in Iowa, where he led curriculum, assessment, and school-improvement initiatives, all under the umbrella of a professional learning community philosophy.

Katy Sue Traicoff is an experienced educational leader with a passion for fostering collaborative learning environments and supporting the professional development of educators.

Matthew Treadway, EdD, is the former principal of Freedom Elementary School in Shepherdsville, Kentucky, where he led his staff in developing a collaborative culture centered on the three big ideas of a professional learning community.

Maria N. Trejo, EdD, is a consultant who provides training, coaching, and instructional leadership support. She also designs professional development events, webinars, and international teacher exchanges.

Ringnolda Jofee' Tremain has been in education since 2001, starting as a high school attendance clerk before rising to become the K–8 principal at Trinity Leadership Arlington in Texas.

Renee Tristan is an English language arts content specialist for Tomball Independent School District in Northwest Houston, TX. As an instructional leader and literacy coach, her work focuses on the implementation of standards-aligned teaching and higher levels of literacy for all students.

Catlin R. Tucker, EdD, is a best-selling author, a keynote speaker, an international trainer, and a professor in the Master of Arts in Teaching program at Pepperdine University in California. She taught for 16 years in Sonoma County, California.