"Elle fait de la danse." means: She is making up a dance, She takes dance lessons, She's dancing

Hi Gloria - this is explained in the lesson, but here's the section in case you missed it:

"Remember, English has two present tenses: I dance (simple), and I am dancing (continuous) which lets us make the distinction between something you do regularly versus something you're in the middle of doing. French has no present continuous tense, so we use faire de to distinguish the regular activity that you do, from the one-off activity you are doing. "