Students get an index card. They write down a question about the material for the entire group. They then pass on their card to another student, who passes it to another student. Students then make groups of three or four, and pick one question on the index cards they have as a group (it cannot be a question of one of the group members) and collaboratively try to come up with answers to it, taking notes during the process—which steps are taken, what main themes are discussed, etc. (for example on flip-over sheets)
After the question has been answered, it is shared with the student whose card was discussed, including the notes about how the answer was constructed by the group.