 In this learning activity, you'll learn the difference between a parameter and an argument. It's easy to confuse the terms parameter and argument, but they are different beings. A parameter is a variable which is part of a method's signature. An argument is an expression or a value that's passed into the method. There is a subtle difference. Consider this JavaScript method. The variables A and B are the parameters of the function AddToNumbers. Now, let's call this function. The values 5 and 3 are arguments. Think of it this way. Parameters are variables, arguments are expressions or values. Now, let's do a quick quiz. Look at this code and determine whether the highlighted portion is a parameter or an argument. If you said parameter, you are correct. Let's look at another one. This time, we're looking at an argument. Try one more. This one might be tricky, but that date is definitely an argument. What about this date? If you think this date is a parameter, you are correct. In this learning activity, we learn the difference between a parameter and an argument.