On Thursday voters in Scotland will decide whether or not to leave the United Kingdom. If you teach current world events, you may find the following resources to be helpful.
CGP Grey's video The Difference Between the United Kingdom, Great Britain and England Explained provides a five minute overview of the differences between terms that some people incorrectly use interchangeably.
NBC News offers this breakdown of ten things to know about Scotland's independence referendum. The list includes some explanations of why Americans might be interested in the outcome of the vote.
The BBC (yes, they probably have a bit of bias on the topic) offers this overview of key issues at a glance.
The Edinburgh News (again, they probably have a bit of bias on the topic) offers this list of ten reasons for and ten reasons against independence.
Jeffery Hill has created a small quiz about Scotland's history and culture. You can find the quiz as a set of slides or as a PDF on his blog.