The document discusses the fundamental principle of counting and provides examples of how to use it to calculate the number of possible outcomes in different scenarios. The principle states that if event A can occur in m ways and after A occurs event B can occur in n ways, then the total number of ways the two events can occur is m×n. Examples include calculating the number of ways to draw balls from a jar to make a sum, possible Facebook profile layouts using different applications, password combinations, and arrangements of friends that could appear in a Facebook profile box.