An ongoing research project, Dimensions of Classroom Instruction (DCI) is described. The primary data source is a study of reading in nine second-grade classrooms using such observation techniques as categorical observation, ethnographic observation, and videotaping. Three major objectives for the project are stated: 1) developing methods of refining information from sources such as ethnography, videotaped records, and interviews; 2) comparing information from the perspectives used in the reading group study and other sources available to the project; and 3) examining the relationships between the content of reading instruction, method of instruction, and individual students' abilities and perceptions. (JD)