This packet provides the concerned teacher and supervisor with materials for learning how to determine the percentage of time their students are actively engaged on task. The materials include definitions of key terms, a list of situations during which students must be considered unengaged, sample forms to be used in classroom observations of students, procedures to be used during classroom observations (including instructions for filling out the forms), a checklist of methods for improving time spent on task and student engagement rates, and a list of reference materials. (Author/PGD)