Yes the flight dispatch paper which you have with routes, cost index, etc.. but still you must have a functioning MCDU/FMGC to enter the WP's for the route in order to navigate there. A pilot enters route, etc.. (Usually entered automatically with CO-RTE (Company Route) or just manually) in the F-PLN (Flight Plan) page. With no route entered you will not be able to navigate unless as what you said navigate "old school".