A system for observing and coding verbal interchanges between the teacher and his pupils, at all instructional levels, is described in this study. The system, widely known as the Flanders System of Interaction Analysis, is reviewed in terms of its effect on the classroom behavior of teachers and on student attitudes. The application of the…

Flanders' Interaction Analysis, which classifies verbal interaction into 10 categories, was used to compare two groups consisting of seven trainable mentally retarded (TMR) classrooms each. The sample was selected from the extremes of a population of 87 TMR classrooms on the basis of their teachers' high (tending to flexibility and harmony) or low…