The tutorial has been designed so that you can maximize the screen if that is your preference. The navigation keys appear below the last line of text. At any time, you can click the double-arrow button to return to the main menu, and from there you can select the module you want to explore.
When you click the hyperlinked text, a window opens to provide more conceptual information. When you click the gray button, a window opens to provide a graphic illustration of specific terms. Close the window when you have finished reviewing the text or graphic, and then resume reading the module.
The graphic indicates that conceptual information is presented. The
graphic signifies the beginning of an exercise. Generally, conceptual information is followed by an exercise, so that you have an opportunity to practice what you have just read. Most exercises are followed by a
button. Click the button and you will see a screen capture of the result you should have if you have completed the exercise correctly. Use this button to check your progress.