Print set of 31 on index cards. Each card tells name, position in family & age. Pass out 1 per student (reduce # of families or # of family members to accommodate your class size). Students may offer info about themselves ONLY when answering a question. Students must find all members of their family. When done, each person must introduce a DIFFERENT member of the family.
I have taught French at the high school level for 18 years. I have also taught enrichment classes to younger students and continuing education to adults.