During the report-back , the scribe informs the entire workshop on how his or her group tackled the particular problem. The trainer records these reports on large pads of paper in front of the workshop so that all can refer to it. After the scribe's report, the workshop is thrown open to general discussion about the problem at hand. Before the discussion drifts too far and wide, the trainer needs to bring it all together during the summary. Here, the trainer highlights the key points, and brings up any problems and points that may have been overlooked in the report-back.
Good summaries tend to be short and to the point.