Consistent with research conducted by George Spindler 60 years ago, teachers continue to perceive groups of students, typically students that differ from the teacher, as less capable of accomplishing meaningful tasks, belonging and contributing to social groups, and engaging actively in challenging work. The bias is especially great for students…

Presents a network-assessment technique and examples showing how group experiences affect children's behavior. Compares classical sociometry and the use of composite social maps. Discusses quantifying peer-network information, using peer-network profiles as context descriptors, and identifying change in children and networks. Shows that peer-group…