Authors & Presenters

Karen Power is an educational presenter and a former teacher, principal, superintendent, and senior advisor for professional learning and leadership. Karen has implemented the PLC process both as a principal and as a superintendent, and for several years, she has supported collaborative work in schools to meet the needs of students.

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.

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.

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.