Lesson Overview

In this lesson, the focus is on functions: using them, creating them, and debugging them! As you’ll learn, there are three important concepts that I want you to really understand regarding functions: arguments, return values, and scope. You’ll learn all the details in the following lesson components:

1. Understanding the mechanics of functions

2. Learning how to create your own functions

Learning Goals

By the end of the week, you should be able to:

• understand how to call functions.

• know the different types of arguments.

• know how to define your own functions.

• understand how values are passed from the function to the calling program.

• understand the concept of variable scope.