The DrScheme window is divided into two halves. If it does not, from the Language menu, select Configure Language. From the menu that gives you, select Beginning Student. DrScheme helps you with the indentation if you use the Return key in appropriate places. To edit, you can use the mouse, arrow keys, and backspace as you would expect.
Some people prefer using the mouse, while some people prefer using the keyboard.
Now, in the bottom half of the window, type in some Scheme expressions, including some using owe DrScheme has lots of other features, including a complete manual. There's no need to learn all its features, but we encourage you to explore. We will discuss these in class this coming week, but here's a preview. Design recipes are a very important component of this course, and you will be required to follow them, so the earlier you get into the habit of using them, the better. When writing programs, there are lots of things we need to think about.