This App was designed for administrator’s to use as a walk-thru tool for classrooms servicing students with disabilities. This App also provides researched based guidance and best practices that should be found in classrooms servicing special populations. Administrators can use these tools as they observe classroom settings that service students with disabilities. These tools can be used to inform the Texas Teacher Appraisal System (PDAS) and 360. The tool specifically focuses on classrooms utilizing the Co-Teach approach, Early Childhood classrooms, and self-contained special education classrooms.