Pre plan or blag
I've not listened to such a lot of rubbish for a long time!
The basics of navigation training is not about blagging your way around the home counties or wherever else is just down the road. GPS is a fantastic tool and so at one time were VOR's thus considered. However, the RNAV computations and the software of the modern GPS exploit the very same traditional navigation techniques for which so many of you in your ignorance treat with such contempt.
I wonder how many of you reinventors of the wheel have been any great distance away from the comfort of home flying to the range of your aeroplane over unkown country with few known features WITHOUT the aid of our modern kit. If you have you will not be one of those who choose to ignore the very well defined principles of PLAN, PLAN, PLAN. Do the work on the ground in comfort with a cup of tea and a bacon butty or work your nuts off shouting for MUM! when your completely lost - the choice is yours.
Whatever your choice please do your students a favour and teach them properly for they may need those basic skills sometime in the future which will save them from becoming a fool to circumstance.
Should the worse happen they won't be shouting mum, they'll be cursing YOU!