The passage states that there occurs an inter-group variation in children's interaction with teachers, that is, while the younger group of children (6-7 years) do not react differently, the older groups of children (7- 10 years) clearly divide the teachers into group coordinators or full-time teachers and give more weightage to their instructions. This division of teachers in the minds of the students and the attention they pay to a selective group of teachers affects the students' behavior toward the teacher and the quality of interaction between them.