Sheila Eller has worked in a multitude of educational settings during her career. In addition to her current position as a principal in the Fairfax County Virginia Public Schools, she has served as a middle school principal in the Moundsview Minnesota School District, as a principal in other schools in Minnesota and Illinois, as a university professor, as a special education teacher, a Title I math teacher, and a self-contained classroom teacher in Grades 1-4. Eller has also been a member of the executive board of Minnesota ASCD and has been a regional president of the Minnesota Association of...