I nominate two Heinlein stories that may be of interest to teens:
The Rolling Stones
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"The Stones, a family of "Loonies" (residents of the Moon), buy a used spaceship (which by this time is less complicated than a car), overhaul it, and go sightseeing around the solar system."
And for the more advanced class, discuss the political layer of
The Moon is a Harsh Mistress
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"...a 1966 science fiction novel by American writer Robert A. Heinlein, about a lunar colony's revolt against rule from Earth. The novel expresses and discusses libertarian ideals in a speculative context, yet portrays the need for a powerful governing computer to control many aspects of the society."