Authors & Presenters

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.

Jennifer Shaver, EdD, has been in education for over 15 years, serving as a teacher, instructional coach, assistant principal, and most recently head principal. She opened a new elementary school in 2020.

Cindy Sholtys-Cromwell has spent the last 23 years as an administrator with the Kelso School District in Washington. She is currently the principal of Kelso Virtual Academy (K–12) along with the Kelso GED Program.

Stephenie Smith is an instructional coach at Sparkman Middle School. A former middle school science teacher, she works with teachers, school administrators, and district leaders to implement effective professional learning communities and response to intervention.

Rea Smith is a mathematics facilitator in northwest Arkansas. She passionately supports the work of professional learning communities with a focus on common assessments to improve student and teacher learning.

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.

Jeanne Spiller is assistant superintendent for teaching and learning for Kildeer Countryside District 96 in Illinois. Her work focuses on implementation of the Common Core State Standards.

Brian M. Stack, CAGS, is a former New Hampshire high school principal who spent 16 years at a Model PLC at Work® school engaged in nationally recognized K–12 competency-based learning. He is the director of innovative projects for the New Hampshire Learning Initiative and specializes in supporting teachers and administrators in schools and districts across the country.

Mandy Stalets is a teacher and learner who is passionate about sound assessment and grading practices, as well as standards-based learning. Along with her consulting work, she is currently a high school mathematics teacher at Illinois State University’s laboratory schools.

Rebecca Stobaugh, PhD, is a professor at Western Kentucky University. She teaches assessment and unit-planning courses, supervises first-year teachers, and consults with school districts on critical thinking, instructional strategies, assessment, technology integration, and other topics.