Precision teaching emerged from O.R. Lindsley's pristine application of Skinner's natural science of behavior, with a focus on response rate measurement and free operant procedures. When applied with human learners in instructional settings, these first principles led to a series of developments framed in this paper as four kinds of ceilings that…

The authors describe a precision teaching screening procedure used in a public school setting. Screening material is based upon the basic skills that were taught during the previous year and consists of one-minute performance samples taken on 10 consecutive school days. (Author)