This manual is designed for use by data collectors and others during training on the Teacher Performance Assessment Instruments (TPAI) developed by the Georgia Department of Education and the University of Georgia to evaluate minimum competency skills in candidates for teaching certificates and beginning teachers. Contained within are the five instruments which comprise the TPAI, a commentary on three of these instruments, and a summary of procedures for managing the data collected during an assessment. The handbook may also be used as a reference during an actual assessment of teacher performance. (Authors/LH)