The NY Times has published some of the exam questions given by Barack Obama during his time teaching law school at the University of Chicago.  Nan Hunter at the blog, Feminist Law Professors, was impressed with the exam questions given.  She states that "[a]lmost every exam includes a question that involves sexual orientation or reproductive rights or a combination. His 2001 con law exam, a few months after September 11, contained a question involving bioterrorism."

Professor Obama on sexuality, gender, and health -- Feminist Law Professors

Inside Professor Obama's classroom -- NY Times

My comment on Obama's teaching materials -- The Volokh Conspiracy (Randy Barnett)

Barack Obama at the University of Chicago Law School -- Althouse (Ann Althouse)

List of Obama's exams:

Syllabus: Current Issues in Racism and the Law

2003 Final Exam
2002 Final Exam
2001 Final Exam
2000 Final Exam
1999 Final Exam
1998 Exam
1997 Final Exam | Answer Memo
1996 Final Exam | Answer Memo