Learners then move around the room asking each other if they agree with the statement or not, and WHY. They take notes of the different opinions.
You might insist that they interview a minimum number of people e.g. 10 in 10 minutes (you will need to adjust this according to the group and time available).
There must be enough different statements (4-6) to ensure that a range of topics or subtopics are being discussed.
Example 1, Example 2
Pupils holding the same statement sheet then group together and discuss their findings, before teacher-facilitated feedback to the whole class. This small-group session will be more successful if the groups are given very explicit criteria in advance for what they are expected to feedback, e.g. "You must agree on the top three most convincing reasons supporting the statement and the top three arguments against.
This could also be a valuable opportunity for a bit of numeracy across the curriculum - you might for example insist that groups collate their tally charts and express the numbers of their classmates who agree / disagree as a percentage.