The International Baccalaureate (IB) is a college entrance examination, which can be taken in any country and is recognized by universities in any country. Adoption of the IB curriculum in a school ensures that the school is brought up to international standards. "Supertest" is two stories woven together: the birth and the growth of IB in the world and the United States, and the birth and growth of IB at Mount Vernon High. This will show how the ideas first conceived by a small group of educators in Switzerland eventually helped transform a typical American public school. Over 500 U.S. high schools currently participate in the I.B. program.