Not sure you need to "give back" spinning on the FI course unless you are getting the no aeros restriction lifted, I think on the basic course you just need to learn spin recovery in case a student cocks up and you need to recover because of this - you are not expected to teach it. I would expect a thorough briefing and then demo from the instructor running the course before practice by yourself, probably built up in stages (recognising spin, then recovery - you might not even be taught entry, though I think most will teach it.) If you
are required to give it back then it will only be after you have been taught it in the first place.
