American law schools use appellate court decisions to teach the implementation and progression of the law. Typically, the first case in a series will stand for the proposition that a plaintiff is entitled to a certain right. A later case demonstrates that a subsequent plaintiff is also entitled to the right. After a number of cases are presented, the student is expected to understand the law, policy, doctrine or test that applies to situations revolving around the right.
Southard, Jo L.
"Human Rights Provisions Of The U.N. Charter: The History In U.S. Courts,"
ILSA Journal of International & Comparative Law: Vol. 1
, Article 3.
Available at: http://nsuworks.nova.edu/ilsajournal/vol1/iss1/3