Short Lessons on How Snow is Made

My oldest daughter is super excited to start her third year of ski lessons this winter. I'm also very excited about it because I'm going to be giving ski lessons at our local ski mountain. While we've had some snowstorms this winter, we wouldn't have nearly as much area to ski on if it weren't for artificial snow. Still we would prefer to have real snow because, as every skier knows, natural snow is better than man-made snow. What is the difference? And how is snow made? Those questions are...