What is a critical path and how do I view it?

Hi Joanne

You can always refer to your course reference material or online help for the definitve on critical path. To summarise; the crtical path denotes linked tasks in your project plan with minimum or no slack (float).
In Project you have the option to set exactly how much float sets a task as "critical". There are several ways to view your critical path, one way is to goto Project menu, then "Filtered for: all tasks", then "Critical"

Hope this helps

Regards

Jacob