It seems to me that knowing oneself doesn't have as much to do with "what you would do in x situation" as why you would do that in the given situation.
They make glasses and video drivers that can simulate 3d as well as some sort of screen that you can put infront of your monitor. Those things only work properly if the game is all 3d already. Primarily used in flight sims.
Well, there you have it, depends on who's teaching :p It is of course always recommended to take calc in HS as it will probably be a full year vs 1 semester in college, plus you get it out of the way.