As a kid, there are two things everyone wishes he or she had for situations like this: the guts to pull this move off and a teacher actually cool enough to appreciate it.
In a classic case of kids getting asked questions adults wouldn't even know, the teacher asked who owns Greenland for a bonus question on a test. The hint totally gave the answer away, in a sense.
If school really is supposed to prepare us all for real life, then this kid showing people how to think on their feet is more than worth that one bonus point. Simply put, this student took the teacher to school.