Navigate the lab by clicking on the page numbers to the left.

Use the '?' and 'A' to show/hide the question and answer panes.

The other buttons on the top bar will allow you to change the image type.

Some images allow you to draw arrows or lines using the buttons at the bottom of the page.

Click the start button to begin the lab.

After the lab, check out the "Quiz" tab. The questions here make additional points (mostly from Robbins) that may not be covered in lab. They range from simple to complex and are meant to help you think about the lab concepts in more depth.