Some years ago, I was in an experimental galley in the old Arts & Industries Bldg at the Smithsonian, where visitors were encouraged to react to an exhibition by writing on 2" x 2" post-it notes and sticking these on a large board. Staff found that people were referring in their own notes to others previous posted on the board and the board turned into an impromptu "discussion group". I have used the technique with good results to obtain visitor reactions to the Canadian Museum of Civilization's "Canada (history) Hall". During a slow month (October or November, I don't recall which), we had 650+ responses which, collectively, told us to: a. crank up the ambient light; b. made the labels more readable; and c. introduce orientation signage to help the visitor understand where they were geographically and on a time line. Very useful information. We made the changes and did a more formal survey which showed that the visitors were very satisfied indeed by the changes. Perhaps a similar approach could used for children able to read and respond to simple questions - or simply to record their thoughts? or why not encourage children to express their thoughts in the form of drawings? Harry Needham Canadian War Museum