Authors & Presenters

Georgina Rivera is an elementary school principal with over 20 years of experience in public education. She works with educators and leaders to build collaborative teams and ensure all students receive high-quality mathematics instruction.

Connie Schrock, PhD, is an expert in K–12 education and college-level mathematics and has decades of experience in collaborating closely with educators and districts to enhance student mathematics learning in middle school, high school, and college.

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.

Christie Shealy, EdD, is the director of testing and accountability for Anderson School District One in South Carolina. Likewise, she coordinates the multilingual learners program in the district. Dr. Shealy has served in many capacities within the field of mathematics, and she specializes in developing professional learning communities at various levels.

Chris is a dynamic presenter and educator with over three decades of education experience. His vision and guidance have led schools to significant improvements in teacher efficacy and student learning.

Mignon Smith is an Assistant Principal at a middle school in the District of Columbia. Previously, she served as a math instructional specialist (grades K-8), curriculum planner, math department chair, grade level chair and math and physics teacher. She has taught in public, charter and private school environments across elementary, middle, and high school.

Rea Smith is an elementary mathematics and science curriculum specialist in northwestern Arkansas. She passionately supports the work of professional learning communities with a focus on common assessments to improve student and teacher learning.

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.

Jennifer Wise is an experienced mathematics educator currently serving at the district level as a K–12 mathematics coordinator in South Carolina. Over 15 years of experience have bred a commitment to ensuring all students receive high-quality mathematics instruction.

Gwendolyn Zimmermann, PhD, is director of assessment, research, and evaluation at Adlai E. Stevenson High School District 125, a model professional learning community district in Lincolnshire, Illinois.