Note: To properly boil a potato, I was taught to scrub the potatoes, place them all in a pot, and then fill the pot with cold water to cover the potatoes by a couple of inches. Place the pot on the stove and place on a high heat to bring to a boil. To check for doneness, pull a potato out of the water and stick a fork in it. If there is a lot a resistance and it is hard to put the fork in, then they need to cook longer. If the fork slides in easily, the potatoes are cooked.
* Please, please, for the love of your pot, please do not salt the water until it has reached a boil. Adding salt before it reaches a boil will cause the bottom of your pot to get pock marks from the settled salt.