In my Art I class last fall, to teach contrast and unity, I gave each student
a piece of scrap matboard. These varied in size, but I tried to keep the
amount of board somewhat equal for each student. They were instructed to cut
the matboard into nine pieces, and then to re-assemble the pieces, using
white glue, to create a three-dimensional sculpture with one of their pieces
as the base. Some students used small bits of masking tape for support while
the glue dried.
The next time the class met, students were instructed to find someone whose
sculpture resembled theirs, and to glue the base pieces of the two sculptures
together. They then used a paper punch to put a hole somewhere in the
sculptures, and suspended them using fish line. We hung these from the
ceiling, and they were awesome. It was a good opportunity to talk about
value, contrast, sculpture in the round, plus careful workmanship.
And I got rid of a bunch of matboard. Mine was all white, but colors might
be interesting, too.