Leader: You will need as many index cards as you have group members. On each of those cards write, "10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%." You may duplicate numbers if your group is large.
Hand a card to each person and ask, "To what in your life do you give this percent of your time and energy?" (i.e. I give about 30% of my time to reading and writing.)
