Instructions: Applying
pressure with a pencil, create a tonal value scale (white and black at the
ends of the scale and four or more gradations between the ends) on the far
left of the paper. Then, on the unused portion of the paper, create a design
using geometric shapes that overlap each other. Assign a tone from the tonal
scale to each shape. Apply the tone selected to each ahape and calculate
the tonal value of the overlapping portions of the shapes. Eg.
if a shape with a light tone overlaps a shape with a dark tone, then the
overlapped portion would be a medium tone.