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.

Keri Rathbun, EdD, is the director of coordinated school health and career counseling at Northside High School in Fort Smith, Arkansas. She has worked in education for more than 20 years.

Dana Renner is the assistant superintendent of Stillwater Public Schools. She has more than 20 years of experience in education and has worked at all levels of education, from preschool through high school.

Vanessa Reyes is a high school principal with over 22 years of experience in secondary education. She is passionate about leading in ethnically and socioeconomically diverse communities and has led two different schools to Model PLC at Work® certification.

Michael Roberts is an author and consultant with over two decades of experience in education. Michael has been a teacher and administrator at every level from elementary school to the district office and has worked with students from all demographics.

Bo Ryan is principal of the Ana Grace Academy of the Arts Elementary Magnet School in Bloomfield, Connecticut. He is passionate about building and sustaining professional learning communities (PLCs) and has led two different schools to Model PLC at Work® certification.

Clara Sale-Davis takes no excuses for low performance, and she sets an inspiring example for all students, noting that “all means all.” Born, raised, and educated in Texas, she worked in the Brazosport Independent School District in Freeport for 32 years.

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.

Dr. Spiller is executive director of Title IX Compliance and Investigations, a new division in Richardson ISD that he has been appointed to onboard. Previously he served for eight years as the Lake Highlands Learning Community executive director in Richardson ISD, a district with more than 10,500 preK–12 students. Darwin has served as classroom teacher, assistant principal, principal, and school support officer.