In short, I am a teacher, not a tech person (probably my first problem).
In the middle of this past school year, another teacher showed me how to get mathematical notation and symbols using LaTex on our school's Moodle site. It worked great.
Today, I attempted to do more of the same, but only some commands are working. I have looked at the discussion topics that already exist, and none seem to be exactly this problem. Obviously, the Tex filter must be on, because it works sometimes, but not others.
I really need this to work to complete a summer project, so any ideas that do not involve using our tech people would be greatly appreciated (they are looking to ME to be the expert on this stuff!).