Present the sports available for today's activities and have students discuss the most common foot motions used in the sports.
Have 2-3 students do a sport one at a time. They can shoot baskets, swing a baseball bat, jog, dribble a soccer ball, or do track or field events such as the long jump. As each student participates, have the rest of the groups observe the actual motions. Answer questions such as:
How do their feet move?
If your sneaker could have special qualities for that sport what would they be?
What suggestions do you have for how their shoes could be changed to match the movements for that sport?
After all students have tried a sport, have them compare the motions they predicted would be most common to the ones they observed happening.