Suggestion: If he's eligible for doing driving practice with you (Basically - older than 25 and has had his licence for more than five years uninterrupted), just find a large, open parking lot once some snow and ice is around.
Honestly, simply spending a few hours in an empty parking lot did more for whatever winter driving skills I may have picked up than any formal driving lesson did. There's a lot to be said for trying to maneuver the car and failing miserably to do so - repeatedly - without hitting anything. Most educational. (And fun! Just don't get too carried away, or the police will chew on you + spouse for reckless driving if they are bored.)
Proper winter tires helps a lot. As does a gentle right foot and slow, smooth operation of the steering wheel (And if you really want to go native - studded tires and 4x4)
(Not that I expect this to be news to you; I'm just making small talk, as it were. :))
Honestly, simply spending a few hours in an empty parking lot did more for whatever winter driving skills I may have picked up than any formal driving lesson did. There's a lot to be said for trying to maneuver the car and failing miserably to do so - repeatedly - without hitting anything. Most educational. (And fun! Just don't get too carried away, or the police will chew on you + spouse for reckless driving if they are bored.)
Proper winter tires helps a lot. As does a gentle right foot and slow, smooth operation of the steering wheel (And if you really want to go native - studded tires and 4x4)
(Not that I expect this to be news to you; I'm just making small talk, as it were. :))