Originally Posted by icanseeformiles(andmiles)
Yury, I am not being sarcastic when I say that teaching your girlfriend how to ski is the simplest way to stop being her boyfriend. The skiing world is full of true stories about breakups and divorces instigated by "teaching them to ski."
It's also full of stories about couples that ski together frequently and don't really have these "teaching to ski issues." If trying to help your girlfriend, wife, etc... causes your relationship to fail you have had huge communication issues that would have likely caused it to fail anyway. That is perhaps the worst argument against teaching a significant other to ski.
The best argument is that you simply aren't going to be a very good teacher because you don't understand skiing well enough to communicate that to a beginner in an effective manner. Teaching somone to ski well is a difficult thing to do and impossible if you don't have a strong grasp on the fundamentals of skiing yourself. So even if she is receptive to your help, it's probably not going to help her very much. Even pointing out the right things she is doing could be detrimental because you might not have a very good grasp of what the right things are.
If you want to improve your skiing along with hers, get instruction material and practice with it together and share your feedback, but don't give analysis. Let her experiment with the material and gain her own understanding and take a lesson at reasonably spaced intervals to check that understanding. There will not be any one single tip or pointer that will suddenly improve her skiing. It will improve through balance improvement over time and focused skill practice that integrate into her movements. All of this takes time and patience.
The most useful encouragement will just be pointing out how great it is that you guys can spend time together skiing and how much fun you are having.