Trekking poles

they do fit in my suitcase, but I am wondering if I need them.  Also in the tour itenerary, it states the first morning our equipment is checked.  Does this mean that poles are potentially rentable from Jackson Teton Science school?   Thank you.

I also want to know if we spend any significant time on the inner Teton park road?  I am trying to outline activities outside the program.  Please advise.