Before we start color correcting a shot, a few words about scopes.
http://avidscreencast.com/asc22
Here are direct links to the other tutorials in this series:
Color Correction Basics Part1
Color Correction Basics Part2
Color Correction Basics Part3
Color Correction Basics Part4
Color Correction Basics Part5
Color Correction Basics Part6
Color Correction Basics Part7