Don't you find you are writing the same thing again and again when you mark drawing? The attached 7 pages of stickers will CUT YOUR MARKING TIME IN HALF as they give a target for the 7 most common mistakes.
Stickers include targets for: improving the overall shape, not giving a drawing a dark outline, adding more detail, smoother shading, not working too faintly, not working too small, not smudging work.
These stickers are designed to be printed on Avery L7163 or stickers that are 99.1 x 38.1 mm.
Should you think of a common mistake that students make that I have missed out email me on firstname.lastname@example.org and I will add it to the selection.