A quick introduction from me. I teach "Spaceflight Operations and Related Sciences" (aka. "SOARS") to online students via a company called "Homeschool Connections". We utilize the Orbiter Spaceflight Simulator to expose the students to a whole host of topics since there's so much realism. Parents also love it because it's "fun learning" instead of space being simplified into a game (with more emphasis on the game than on the space part). While there are no formal "objectives" or "achievements" in Orbiter (that I know of), there's still the satisfaction that comes with launching, aligning with the ISS, and successfully docking! The visual improvements of Orbiter 2016 over 2010 are also something to delight in, even if some of the students have to resort to using Orbiter 2010 because of weaker systems.