First Ski Lessons at Mammoth Mountain

I'm organizing our first family ski trip, which is coming up right before Christmas. I am so excited but have so much to do to prepare. It's really difficult to figure out what's best when it comes to organizing my 2 year old's first lessons. Will she be old enough? Should we buy or rent equipment? Don't forget the pants, gloves, jackets, socks, underwear and goggles. And - most imortantly - should she ski first or snowboard. I have to answer all these questions and more in just two weeks!