Today's activity, recapping the learning on sharing and grouping and their connection, is to be completed while watching the video.  Please pause it at each stage to complete the tasks.  It would be useful to have some objects to use (30 objects is the most you will need and they do not all need to be the same!).  Please just spend a maximum of 40 minutes on this - the final task on the video (using 30 objects) should be treated as an extension challenge.