Professors give you a longish, involved fact pattern (i.e basically a story). You 'spot' the legal 'issues' that are presented. (i.e write about how the story presents or would make use of the rules of law you've learned in class).
Example: Fred just graduated from high school in PA. He's packed up his stuff into his 1999 Venus and headed out to NY where his college UNY is located. On the way to NY, he goes through NJ, and gets hit by a gets hit by a car driven by Paul, a citizen of MI visiting his sister who also lives in NY. Fred is pretty badly injured. He's facing $60k worth of medical bills. Furthermore, it's looking like he's not going to be able to start at UNY. UNY has been less than understanding about the whole matter and says that Fred is going to have to forfeit his entire first semester tuition of $16k. Furthermore, his clunker car, worth $9k has been ruined. Paul says the accident wasn't his fault though -- he claims Fred ran a stop sign! In fact, Paul ended up in the hospital too, with bills totaling $10k and his car, worth $30k, was totaled! Paul also said that he tried to stop when Fred came flying through the intersection but the breaks on his brand new WMB, which he purchased from World Wide WMB in MI, failed! Fred has filed suit in a PA state court against Paul. Unbeknownst to Fred, Paul owns a small amount of office space in PA that he rents out to the Law Offices of Dewey, Cheatem, and Howe. Notice of the lawsuit was sent via certified mail to Paul's home in MI, but since he was in the hospital in NJ and lives alone, the notice was returned unopened. PA's long arm statute reaches as far as constitutionally allowed and PA's rules of civil procedure are the same as the Federal Rules.
Analyze the procedural options Paul has in this case.
And then you'd go into a long discussion (which I'm omitting due to being sick of analyzing civ pro cases) of subject matter jurisdiction, personal jurisdiction, minimum contacts analysis, specific versus general jurisdiction, insufficiency of notice, venue, forum non-conveniens... Move on to removal to federal court, joinder of claims against a single defendant, compulsory counter claims, interpleader, possibly talking about whether the counter claim and interpleader can be brought using supplemental jurisdiction if the case is removed to federal court. And there's probably some other stuff that I accidentally introduced into there or have already forgotten too.