As a new instructor, I'm finding my biggest challenge is being able to come up with constructive ways of using class time. Generally, I have 3 or 4 days per subject with about 3 hours to fill each day. Since I am teaching at a vocational college, the subject matter to be covered is fairly limited. That means I run out of things to say by the second day. Any advice for coming up with lesson plans that will cover all of my allotted time?