I set out cardboard patterns for students to trace on the burlap with white chalk. There was a time I did not use patterns and drawing the pictures proved to be frustrating for the students. The drawings were never big enough or fit a circle shape very well.
I told the class how children their age stitched samplers long ago, way before TV, sports, computer games. We viewed a number of them on the internet. Most of the antique samples had dates stitched on.