I have a student who is at a very high level, and yet causes difficulties. The subjects in the curriculum bore said student, and as a result, he doesn't cooperate when it comes to labs or projects. He doesn't agree to do the work. An obvious "solution" is simply to give him a low grade, but it is not an ideal solution, because he has readily mastered the material.

Specifically, what techniques can I employ to encourage him to work on projects and to cooperate? Alternatively, what changes can I make to project guidelines for such students?

Context: This talk about high school students.