In full-class discussion, remind students of the kinds of activities in a mathematical investigation: Problem, analysis, and critique. An overhead transparency * might be useful. Review and classify the activities they've participated in while investigating. Point out that the investigation isn't complete until further problems have been posed.
Review the lists of questions students have generated throughout the investigation, sharing answers to some and marking others for later study.
Solicit extension problems, again reminding students of standard question openers. Keep a list. Questions in the Critique section of the Navigation window might lead to launch problems of other tours, so work to see that these questions arise and choose an appropriate one to explore next.
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