Authors & Presenters

Tamie Sanders has worked in education for almost 30 years. After teaching at the middle school level, she entered school administration and has made it her mission to improve student achievement.

Sarah Schuhl specializes in professional learning communities, mathematics, assessment, school improvement, and RTI. She has been a secondary mathematics teacher, high school instructional coach, and K–12 mathematics specialist.

Sienna Shively is a principal coach in Phoenix, Arizona. Sienna has more than 25 years of experience working as a teacher, principal, director of curriculum and instruction, and principal coach.

Artia Shorter is a dedicated assistant principal at a Title I elementary school in Georgia. With extensive experience working with students living in poverty in Title I schools, Artia is passionate about guiding educators through the professional learning community process and building shared knowledge amongst professional learning teams to increase the cognitive rigor of students.

With over 30 years of experience in K–12 education, author and education expert Jeanne Spiller is an associate with Solution Tree, supporting schools and districts through workshops, coaching, and collaborative initiatives to enhance instruction, foster innovation, and promote equity.

Kwame Stephens has over 20 years’ experience in education, having served as a teacher, high school principal, and consultant. In his current role, Kwame develops and facilitates professional learning opportunities in the areas of school improvement and leadership development.

With a career spanning over three decades, Tesha Ferriby Thomas, EdD, is a seasoned educator whose dedication to fostering collaborative learning environments has significantly enhanced educational practices and student outcomes in schools nationwide.

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.

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.

Eric Twadell, PhD, is superintendent of Adlai E. Stevenson High School in Lincolnshire, Illinois. He has been a social studies teacher, curriculum director, and assistant superintendent for leadership and organizational development.