Have them de-construct like the Cubists did, frame by frame showing the
progression. Cubism results in superimposing,and distorting, multiple points
of view. My 9th grade studio in aRt kids always understood this concept much
better after the lesson. In the final stages incorporate line patterns. This
would help address line, shape, space, size, if you shade could include
value, if added color to patterns then color as well.