Geeks love ‘em. The rest of us struggle to “get” them. But beware, for once you come to understand them, there’s no going back.
Now the reality is that even though you may not realize it, you have likely interacted with and even altered variables before. For example, let’s say you create a quiz in your favorite eLearning program (such as Quizmaker) and you’ve told the program that each question is worth 5 points.