|Diagram of a motte and bailey castle|
All the 1s are invited up to look at a source image hidden on the teacher's desk for 10 seconds, then they return to their group and describe (to the number 2s) what they have seen. The number 2s start to reproduce the image on a blank piece of paper as accurately as possible. After 30 seconds, all the 2s come up for 10 seconds, return to the group, and describe what they have seen to the 3s, to help complete and refine the copied picture / diagram. Then the 3s come up, then 4s, etc.
At this point, stop and tell the groups that they are going to have 1 or 2 more rounds to reproduce the images Ask them "How are you going to best work together to make the image as accurate a copy as possible?" (perhaps combining thinking time with paired talk for this question).
To succeed, learners will need to plan how they will work together (e.g. by splitting the image into quarters and concentrating on one each, or by having one person focus on the labels, spellings, etc.). They will also need to develop an awareness of how much information they can retain in their short-term memory. It is valuable (from a meta-cognitive perspective) to unpick this in the plenary.