The Pre-K Classroom Assessment Scoring System ® (CLASS ®) is an observation tool used to analyze and assess the effectiveness of interactions between children and teachers in preschool classes. Data from CLASS ® observations can be used for a variety of purposes including professional development, program improvement, policy -making, and monitoring. The Office of Head Start (the OHS) began using the CLASS ® tool in Fiscal Year (FY) 2010 to collect for monitoring purposes information about the experiences of children in Head Start programs. The OHS uses a research -based, standardized methodology for using the CLASS ® tool to measure teacher -child interactions—one important measure of quality. This methodology is described in detail in this CLASS ® Reviewer Field Guide. The FY 2017 CLASS ® Field Guide is organized into several sections.
Last Updated: June 17, 2018