National CLASS® Reports

The Classroom Assessment Scoring System (CLASS®) is an observation instrument that assesses the quality of teacher-child interactions in center-based preschool classrooms. Read Use of CLASS® in Head Start to learn about the methodology of obtaining these scores, as well as how Head Start uses CLASS™ for professional development, Designation Renewal System, and in Head Start Reviews. The National Center for Quality Teaching and Learning has developed resources on how CLASS® can be used in classrooms to support child outcomes.