As the use of project-based learning becomes more frequent in the K-12 science classroom, and in chemistry classrooms in particular, teachers have begun to identify practical questions about implementation that should be addressed empirically. One such question concerns whether there is an ideal group size that fosters individual student…

This report, the third annual study of primary program implementation, outlines case study observations of learning groups and of teachers relations to groups. The learning atmosphere of a learning group is determined by presence of conducive or disruptive elements, input of children, and relation of the group to the teacher, in addition to good…