This classroom observation manual (Fall 1976) was developed for use in the evaluation of Project Developmental Continuity (PDC), a Head Start demonstration program aimed at providing educational and developmental continuity between children's Head Start and primary school experiences. The manual provides detailed instructions for the observer on how to prepare for the observations in a classroom, how to identify each behavior category, and how to code the observation record sheets. A 5-second checklist is used to record observations on each child for a total period of 5 minutes. A copy of the record sheet is included along with explanations of specific types of behaviors to look for. The behavior categories are: (1) noninvolved; (2) involved (social/nonsocial); (3) peer interactions; (4) adult interactions; and (5) classroom interaction capacity. Examples of each sub-category of behavior to be coded are listed. (Author/CM)