1) Take a series of photos showing movement at different shutter speeds, from fast (1/1000 sec) to slow (1 sec). This will capture how shutter speed affects the appearance of motion.
2) Research photographers like Muybridge, Lartigue, Edgerton, and Gersht who explored fast shutter speeds, and Milli, Shaw, and Sugimoto who used slow shutter speeds. Find examples in print media showing interesting shutter speed effects.
3) Experiment with other creative ways to demonstrate long and short exposures, such as photographing people suspended in air or drawing with light trails.