Astrotheory 101 was a class available at Starfleet Academy.
In 1996, while taking a Class 2 shuttle down to Earth to beam Henry Starling aboard the USS Voyager, Chakotay and B'Elanna Torres discussed their early days at the Academy. Torres recalled dodging some punches in the Academy lab, due to her temperament. Chakotay remarked "only you, B'Elanna, could start a brawl in Astrotheory 101." (VOY: "Future's End, Part II")