Sharon loves to tell the story of her first experience with a microscope. The lab instructions called for Sharon to cut a small square of an onion skin, observe it carefully, and draw what she saw. Then she was to use a magnifying glass and repeat the process. Then she was to place the onion skin on a slide and examine it under the low power of a microscope. The way Sharon tells the story, her world was rocked when she first saw the cellular structure of the onion skin under the low power of that microscope.