Authors & Presenters

Bob Sonju is an award-winning educational leader, author, and speaker known for his energetic and passionate commitment to making the work of schools and teacher teams simple, doable, and impactful.

Jennifer L. Sparrow is deputy superintendent of Singapore American School. She spent 13 years as a middle school teacher and 11 years as a schoolwide administrator.

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.

Brian M. Stack is a superintendent of schools in New Hampshire and a former principal who specializes in supporting teachers and administrators in developing, sustaining, and enhancing structures to support all learners.

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.

Cheri Stevenson is the executive director of secondary schools for Washington County School District in Utah. She is passionate about sharing solutions she successfully implemented as a teacher, building administrator, and district director engaged in the PLC process.

Sarah Stobaugh is an educational leader with 17 years of experience in upper elementary/intermediate and secondary-level education. She is passionate about the work of collaborative teams to transform school culture by building teacher capacity and ensuring learning for all students.

Kevin Strahley is the principal of Windsor Central Middle School. He was named the New York State Principal of the Year in 2018 and has more than 30 years experience as a teacher, coach, administrator, and consultant.

Timothy S. Stuart, EdD, is head of school for International Community School of Addis Ababa in Ethiopia. In his previous role as executive director of strategic programs at the Singapore American School, he served as the chief architect for research and development and supported strategic school reform.

Mike Suderman has 36 years of experience providing teaching and school leadership at all levels of K–12 education, including district leadership. Mike was a Teacher, Principal and Assistant Superintendent with Edmonton Public Schools and was School Superintendent at a Private School recently.