This video appears on the page: Permutations & Combinations

Permutations: a closer look

In this video we get into the nitty gritty of nPr notation: what it's for and how to use it, including a bunch of example permutation problems about student council, sports teams, and family portraits. Also discussed are Circular Permutations, which is a gotcha question a lot of teachers use which applies only to items in a circle on something that rotates.