This report describes a study of a procedure for recording teacher interactions in a sixth grade classroom. The study was designed to record interactions for an entire class and to determine if a sixth grade student could act as a reliable observer in such a data collecting system. Results indicate that sixth grade students can observe and record teacher behavior reliably, thus eliminating the need for an outside observer and freeing the teacher for other activities. The merits of use of a digital clock in maintaining accurate time counts and high reliability are discussed. (DP)