The purpose of this study was to examine the practices middle school principals employed during the supervisory process. The qualitative study focused on practices middle school principals followed during the pre-observation process, observation process, and post observation process. The study also detailed how the data collected from formal observations and classroom walk-through observations was utilized by middle school principals. Middle school principals who served in large school divisions located within the Commonwealth of Virginia were randomly selected to participate in the study in which the results were obtained by conducting standardized, open-ended interviews. Due to the increasing number of responsibilities and the mounting pressure to provide quality teacher supervision, the practices employed by middle school principals during the supervisory process was an important topic in need of additional research. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com.bibliotheek.ehb.be/en-US/products/dissertations/individuals.shtml.]