A negative drawing is a drawing were every thing but the actual image is blacked out.
In my cut out I cut out the shaded part of the picture and pasted it on a full paper, then used the rest of the picture, flipped it, and glued that to the other side of the full paper. In the drawing, I shaded in everything and erased out the shapes afterward.
They will be able to know what the outline of a drawing will look like.
It will enhance the drawing because you will have the boundaries of a drawing.