In most scenes you have an option of at least six correct exposures. Your job is to choose the exposure setting that is creatively correct. In the video and his book (Understanding Exposure) Bryan Peterson explains what you should consider. We'll do an activity in class that hopefully reinforces the concept.
You decide if a scene needs a short or long depth of field (maybe it doesn't matter). Also, you can choose to freeze action or imply motion.
The Assignment
Practice finding the creative correct exposure with this rubric.