In my lower level 2D Design class, we were studying portraiture and how to more accurately depict the human face. Students were challenged (as we all are!) to capture themselves realistically using both graphite techniques and colored pencil techniques. Layering, blending, and attempting to create value really helped create form in their faces and, when both drawings were complete, we chopped them up into strips and glued them onto a sheet of paper folded accordion-style. This way, when the viewer walks around the artwork, they can see both sides of the artist's personality in one viewing. :)
They were tricky to photograph but it was so fun to see people interact with each piece by walking back and forth in front of them over and over again!
Students were encouraged to pose for the second portrait in an interesting way, use props, or otherwise show a different side of their personality. One kid had to *dab*.... (or was he just trying to get out of having to draw his face twice?)