Find a partner. Ask your partner to shut his or her eyes. Then very gently place two points on the skin on the back of your partner's hands, 5 mm apart. Ask: "Can you feel one point or two?” Next, try to find the minimum distance that a student can distinguish two points instead of one. Do this by trying to place your points 4mm apart, then 3mm, 2mm, and 1mm from each other. Record your subject's response on the table below.
Then try two other parts of the body. See if you can determine which parts of the body have the highest concentration of touch receptors and which parts have the fewest.