It was all about encouraging them to sketch their favourite parts of the allotment. Some did quick sketches whilst others disappeared for 20 minutes before returning to the group. As the was a reasonable evening we chose to work outside until it got cooler.
Despite a few, "oh I'm rubbish at drawing". Every youngster produced a sketch. Every youngster made a start on stitching their picture. Every youngster was fully absorbed until about 5 minutes before the end of the session when some had concentrated so hard were ready to go home. Age range was about 6 - 12 years old.